Revert "Update AOSP Dialer source from internal google3 repository at cl/158012278. am: 91ce7d2a47"

This reverts commit c67d658e7daa453fe9ad9fd1a37f81eaf2048c44.

Reason for revert: This CL broke the sailfish-userdebug_javac-all target on master.

Change-Id: I9b54333a654c00154ca84f4ece84bea4f07cc19b

8 files changed, 0 insertions, 919 deletions

diff --git a/java/com/android/voicemail/impl/transcribe/TranscriptionConfigProvider.java b/java/com/android/voicemail/impl/transcribe/TranscriptionConfigProvider.java
deleted file mode 100644
index 17c9be73b..000000000
--- a/java/com/android/voicemail/impl/transcribe/TranscriptionConfigProvider.java
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-package com.android.voicemail.impl.transcribe;
-
-import android.content.Context;
-import com.android.dialer.common.ConfigProviderBindings;
-
-/** Provides configuration values needed to connect to the transcription server. */
-public class TranscriptionConfigProvider {
-  private final Context context;
-
-  public TranscriptionConfigProvider(Context context) {
-    this.context = context;
-  }
-
-  public boolean isVoicemailTranscriptionEnabled() {
-    return ConfigProviderBindings.get(context).getBoolean("voicemail_transcription_enabled", false);
-  }
-
-  public String getServerAddress() {
-    // Private voicemail transcription service
-    return ConfigProviderBindings.get(context)
-        .getString(
-            "voicemail_transcription_server_address", "voicemailtranscription-pa.googleapis.com");
-  }
-
-  public String getApiKey() {
-    // Android API key restricted to com.google.android.dialer
-    return ConfigProviderBindings.get(context)
-        .getString(
-            "voicemail_transcription_client_api_key", "AIzaSyAXdDnif6B7sBYxU8hzw9qAp3pRPVHs060");
-  }
-
-  public String getAuthToken() {
-    return null;
-  }
-
-  public boolean shouldUsePlaintext() {
-    return ConfigProviderBindings.get(context)
-        .getBoolean("voicemail_transcription_server_use_plaintext", false);
-  }
-
-  @Override
-  public String toString() {
-    return String.format(
-        "{ address: %s, api key: %s, auth token: %s, plaintext: %b }",
-        getServerAddress(), getApiKey(), getAuthToken(), shouldUsePlaintext());
-  }
-}
diff --git a/java/com/android/voicemail/impl/transcribe/TranscriptionDbHelper.java b/java/com/android/voicemail/impl/transcribe/TranscriptionDbHelper.java
deleted file mode 100644
index cbc5cb8a0..000000000
--- a/java/com/android/voicemail/impl/transcribe/TranscriptionDbHelper.java
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-package com.android.voicemail.impl.transcribe;
-
-import android.annotation.TargetApi;
-import android.content.ContentResolver;
-import android.content.ContentValues;
-import android.content.Context;
-import android.database.Cursor;
-import android.net.Uri;
-import android.os.Build.VERSION_CODES;
-import android.provider.VoicemailContract.Voicemails;
-import android.support.annotation.WorkerThread;
-import android.support.v4.os.BuildCompat;
-import android.util.Pair;
-import com.android.dialer.common.Assert;
-import com.android.dialer.common.LogUtil;
-
-/** Helper class for reading and writing transcription data in the database */
-@TargetApi(VERSION_CODES.O)
-public class TranscriptionDbHelper {
-  private static final String[] PROJECTION =
-      new String[] {
-        Voicemails.TRANSCRIPTION, // 0
-        VoicemailCompat.TRANSCRIPTION_STATE // 1
-      };
-
-  public static final int TRANSCRIPTION = 0;
-  public static final int TRANSCRIPTION_STATE = 1;
-
-  private final ContentResolver contentResolver;
-  private final Uri uri;
-
-  TranscriptionDbHelper(Context context, Uri uri) {
-    Assert.isNotNull(uri);
-    this.contentResolver = context.getContentResolver();
-    this.uri = uri;
-  }
-
-  @WorkerThread
-  @TargetApi(VERSION_CODES.M) // used for try with resources
-  Pair<String, Integer> getTranscriptionAndState() {
-    Assert.checkArgument(BuildCompat.isAtLeastO());
-    Assert.isWorkerThread();
-    try (Cursor cursor = contentResolver.query(uri, PROJECTION, null, null, null)) {
-      if (cursor == null) {
-        LogUtil.e("TranscriptionDbHelper.getTranscriptionAndState", "query failed.");
-        return null;
-      }
-
-      if (cursor.moveToFirst()) {
-        String transcription = cursor.getString(TRANSCRIPTION);
-        int transcriptionState = cursor.getInt(TRANSCRIPTION_STATE);
-        return new Pair<>(transcription, transcriptionState);
-      }
-    }
-    LogUtil.i("TranscriptionDbHelper.getTranscriptionAndState", "query returned no results");
-    return null;
-  }
-
-  @WorkerThread
-  void setTranscriptionState(int transcriptionState) {
-    Assert.isWorkerThread();
-    LogUtil.i(
-        "TranscriptionDbHelper.setTranscriptionState",
-        "uri: " + uri + ", state: " + transcriptionState);
-    ContentValues values = new ContentValues();
-    values.put(VoicemailCompat.TRANSCRIPTION_STATE, transcriptionState);
-    updateDatabase(values);
-  }
-
-  @WorkerThread
-  void setTranscriptionAndState(String transcription, int transcriptionState) {
-    Assert.isWorkerThread();
-    LogUtil.i(
-        "TranscriptionDbHelper.setTranscriptionAndState",
-        "uri: " + uri + ", state: " + transcriptionState);
-    ContentValues values = new ContentValues();
-    values.put(Voicemails.TRANSCRIPTION, transcription);
-    values.put(VoicemailCompat.TRANSCRIPTION_STATE, transcriptionState);
-    updateDatabase(values);
-  }
-
-  private void updateDatabase(ContentValues values) {
-    int updatedCount = contentResolver.update(uri, values, null, null);
-    if (updatedCount != 1) {
-      LogUtil.e(
-          "TranscriptionDbHelper.updateDatabase",
-          "Wrong row count, should have updated 1 row, was: " + updatedCount);
-    }
-  }
-}
diff --git a/java/com/android/voicemail/impl/transcribe/TranscriptionService.java b/java/com/android/voicemail/impl/transcribe/TranscriptionService.java
deleted file mode 100644
index 3e80a7f59..000000000
--- a/java/com/android/voicemail/impl/transcribe/TranscriptionService.java
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-package com.android.voicemail.impl.transcribe;
-
-import android.app.job.JobInfo;
-import android.app.job.JobParameters;
-import android.app.job.JobScheduler;
-import android.app.job.JobService;
-import android.app.job.JobWorkItem;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.StrictMode;
-import android.support.annotation.MainThread;
-import android.support.annotation.VisibleForTesting;
-import android.support.v4.os.BuildCompat;
-import android.text.TextUtils;
-import com.android.dialer.common.Assert;
-import com.android.dialer.common.LogUtil;
-import com.android.dialer.constants.ScheduledJobIds;
-import com.android.voicemail.impl.transcribe.grpc.TranscriptionClientFactory;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
-/**
- * Job scheduler callback for launching voicemail transcription tasks. The transcription tasks will
- * run in the background and will typically last for approximately the length of the voicemail audio
- * (since thats how long the backend transcription service takes to do the transcription).
- */
-public class TranscriptionService extends JobService {
-  @VisibleForTesting static final String EXTRA_VOICEMAIL_URI = "extra_voicemail_uri";
-
-  private ExecutorService executorService;
-  private JobParameters jobParameters;
-  private TranscriptionClientFactory clientFactory;
-  private TranscriptionConfigProvider configProvider;
-  private StrictMode.VmPolicy originalPolicy;
-
-  /** Callback used by a task to indicate it has finished processing its work item */
-  interface JobCallback {
-    void onWorkCompleted(JobWorkItem completedWorkItem);
-  }
-
-  // Schedule a task to transcribe the indicated voicemail, return true if transcription task was
-  // scheduled.
-  public static boolean transcribeVoicemail(Context context, Uri voicemailUri) {
-    Assert.isMainThread();
-    if (BuildCompat.isAtLeastO()) {
-      LogUtil.i("TranscriptionService.transcribeVoicemail", "scheduling transcription");
-      ComponentName componentName = new ComponentName(context, TranscriptionService.class);
-      JobInfo.Builder builder =
-          new JobInfo.Builder(ScheduledJobIds.VVM_TRANSCRIPTION_JOB, componentName)
-              .setMinimumLatency(0)
-              .setRequiredNetworkType(JobInfo.NETWORK_TYPE_ANY);
-      JobScheduler scheduler = context.getSystemService(JobScheduler.class);
-      JobWorkItem workItem = makeWorkItem(voicemailUri);
-      return scheduler.enqueue(builder.build(), workItem) == JobScheduler.RESULT_SUCCESS;
-    } else {
-      LogUtil.i("TranscriptionService.transcribeVoicemail", "not supported");
-      return false;
-    }
-  }
-
-  // Cancel all transcription tasks
-  public static void cancelTranscriptions(Context context) {
-    Assert.isMainThread();
-    LogUtil.enterBlock("TranscriptionService.cancelTranscriptions");
-    JobScheduler scheduler = context.getSystemService(JobScheduler.class);
-    scheduler.cancel(ScheduledJobIds.VVM_TRANSCRIPTION_JOB);
-  }
-
-  public TranscriptionService() {
-    Assert.isMainThread();
-  }
-
-  @VisibleForTesting
-  TranscriptionService(
-      ExecutorService executorService,
-      TranscriptionClientFactory clientFactory,
-      TranscriptionConfigProvider configProvider) {
-    this.executorService = executorService;
-    this.clientFactory = clientFactory;
-    this.configProvider = configProvider;
-  }
-
-  @Override
-  public boolean onStartJob(JobParameters params) {
-    Assert.isMainThread();
-    LogUtil.enterBlock("TranscriptionService.onStartJob");
-    if (!getConfigProvider().isVoicemailTranscriptionEnabled()) {
-      LogUtil.i("TranscriptionService.onStartJob", "transcription not enabled, exiting.");
-      return false;
-    } else if (TextUtils.isEmpty(getConfigProvider().getServerAddress())) {
-      LogUtil.i("TranscriptionService.onStartJob", "transcription server not configured, exiting.");
-      return false;
-    } else {
-      LogUtil.i(
-          "TranscriptionService.onStartJob",
-          "transcription server address: " + configProvider.getServerAddress());
-      originalPolicy = StrictMode.getVmPolicy();
-      StrictMode.enableDefaults();
-      jobParameters = params;
-      return checkForWork();
-    }
-  }
-
-  @Override
-  public boolean onStopJob(JobParameters params) {
-    Assert.isMainThread();
-    LogUtil.enterBlock("TranscriptionService.onStopJob");
-    cleanup();
-    return true;
-  }
-
-  @Override
-  public void onDestroy() {
-    Assert.isMainThread();
-    LogUtil.enterBlock("TranscriptionService.onDestroy");
-    cleanup();
-  }
-
-  private void cleanup() {
-    if (clientFactory != null) {
-      clientFactory.shutdown();
-      clientFactory = null;
-    }
-    if (executorService != null) {
-      executorService.shutdownNow();
-      executorService = null;
-    }
-    if (originalPolicy != null) {
-      StrictMode.setVmPolicy(originalPolicy);
-      originalPolicy = null;
-    }
-  }
-
-  @MainThread
-  private boolean checkForWork() {
-    Assert.isMainThread();
-    JobWorkItem workItem = jobParameters.dequeueWork();
-    if (workItem != null) {
-      getExecutorService()
-          .execute(new TranscriptionTask(this, new Callback(), workItem, getClientFactory()));
-      return true;
-    } else {
-      return false;
-    }
-  }
-
-  private ExecutorService getExecutorService() {
-    if (executorService == null) {
-      // The common use case is transcribing a single voicemail so just use a single thread executor
-      // The reason we're not using DialerExecutor here is because the transcription task can be
-      // very long running (ie. multiple minutes).
-      executorService = Executors.newSingleThreadExecutor();
-    }
-    return executorService;
-  }
-
-  private class Callback implements JobCallback {
-    @Override
-    public void onWorkCompleted(JobWorkItem completedWorkItem) {
-      Assert.isMainThread();
-      LogUtil.i("TranscriptionService.Callback.onWorkCompleted", completedWorkItem.toString());
-      jobParameters.completeWork(completedWorkItem);
-      checkForWork();
-    }
-  }
-
-  private static JobWorkItem makeWorkItem(Uri voicemailUri) {
-    Intent intent = new Intent();
-    intent.putExtra(EXTRA_VOICEMAIL_URI, voicemailUri);
-    return new JobWorkItem(intent);
-  }
-
-  private TranscriptionConfigProvider getConfigProvider() {
-    if (configProvider == null) {
-      configProvider = new TranscriptionConfigProvider(this);
-    }
-    return configProvider;
-  }
-
-  private TranscriptionClientFactory getClientFactory() {
-    if (clientFactory == null) {
-      clientFactory = new TranscriptionClientFactory(this, getConfigProvider());
-    }
-    return clientFactory;
-  }
-}
diff --git a/java/com/android/voicemail/impl/transcribe/TranscriptionTask.java b/java/com/android/voicemail/impl/transcribe/TranscriptionTask.java
deleted file mode 100644
index 0fbc33ad5..000000000
--- a/java/com/android/voicemail/impl/transcribe/TranscriptionTask.java
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-package com.android.voicemail.impl.transcribe;
-
-import android.annotation.TargetApi;
-import android.app.job.JobWorkItem;
-import android.content.Context;
-import android.net.Uri;
-import android.text.TextUtils;
-import com.android.dialer.common.concurrent.ThreadUtil;
-import com.android.voicemail.impl.VvmLog;
-import com.android.voicemail.impl.transcribe.TranscriptionService.JobCallback;
-import com.android.voicemail.impl.transcribe.grpc.TranscriptionClient;
-import com.android.voicemail.impl.transcribe.grpc.TranscriptionClientFactory;
-import com.google.internal.communications.voicemailtranscription.v1.AudioFormat;
-import com.google.internal.communications.voicemailtranscription.v1.TranscribeVoicemailRequest;
-import com.google.protobuf.ByteString;
-import io.grpc.Status;
-import java.io.IOException;
-import java.io.InputStream;
-
-/**
- * Background task to get a voicemail transcription and update the database.
- *
- * <pre>
- * This task performs the following steps:
- *   1. Update the transcription-state in the database to 'in-progress'
- *   2. Create grpc client and transcription request
- *   3. Make synchronous grpc transcription request to backend server
- *     3a. On response
- *       Update the database with transcription (if successful) and new transcription-state
- *     3b. On network error
- *       If retry-count < max then increment retry-count and retry the request
- *       Otherwise update the transcription-state in the database to 'transcription-failed'
- *   4. Notify the callback that the work item is complete
- * </pre>
- */
-public class TranscriptionTask implements Runnable {
-  private static final String TAG = "TranscriptionTask";
-
-  private final Context context;
-  private final JobCallback callback;
-  private final JobWorkItem workItem;
-  private final TranscriptionClientFactory clientFactory;
-  private final Uri voicemailUri;
-  private final TranscriptionDbHelper databaseHelper;
-  private ByteString audioData;
-  private AudioFormat encoding;
-
-  private static final int MAX_RETRIES = 2;
-  static final String AMR_PREFIX = "#!AMR\n";
-
-  public TranscriptionTask(
-      Context context,
-      JobCallback callback,
-      JobWorkItem workItem,
-      TranscriptionClientFactory clientFactory) {
-    this.context = context;
-    this.callback = callback;
-    this.workItem = workItem;
-    this.clientFactory = clientFactory;
-    this.voicemailUri = getVoicemailUri(workItem);
-    databaseHelper = new TranscriptionDbHelper(context, voicemailUri);
-  }
-
-  @Override
-  public void run() {
-    VvmLog.i(TAG, "run");
-    if (readAndValidateAudioFile()) {
-      updateTranscriptionState(VoicemailCompat.TRANSCRIPTION_IN_PROGRESS);
-      transcribeVoicemail();
-    } else {
-      updateTranscriptionState(VoicemailCompat.TRANSCRIPTION_FAILED);
-    }
-    ThreadUtil.postOnUiThread(
-        () -> {
-          callback.onWorkCompleted(workItem);
-        });
-  }
-
-  private void transcribeVoicemail() {
-    VvmLog.i(TAG, "transcribeVoicemail");
-    TranscribeVoicemailRequest request = makeRequest();
-    TranscriptionClient client = clientFactory.getClient();
-    String transcript = null;
-    for (int i = 0; transcript == null && i < MAX_RETRIES; i++) {
-      VvmLog.i(TAG, "transcribeVoicemail, try: " + (i + 1));
-      TranscriptionClient.TranscriptionResponseWrapper responseWrapper =
-          client.transcribeVoicemail(request);
-      if (responseWrapper.status != null) {
-        VvmLog.i(TAG, "transcribeVoicemail, status: " + responseWrapper.status.getCode());
-        if (shouldRetryRequest(responseWrapper.status)) {
-          backoff(i);
-        } else {
-          break;
-        }
-      } else if (responseWrapper.response != null) {
-        if (!TextUtils.isEmpty(responseWrapper.response.getTranscript())) {
-          VvmLog.i(TAG, "transcribeVoicemail, got response");
-          transcript = responseWrapper.response.getTranscript();
-        } else {
-          VvmLog.i(TAG, "transcribeVoicemail, empty transcription");
-        }
-      } else {
-        VvmLog.w(TAG, "transcribeVoicemail, no response");
-      }
-    }
-
-    int newState =
-        (transcript == null)
-            ? VoicemailCompat.TRANSCRIPTION_FAILED
-            : VoicemailCompat.TRANSCRIPTION_AVAILABLE;
-    updateTranscriptionAndState(transcript, newState);
-  }
-
-  private static boolean shouldRetryRequest(Status status) {
-    return status.getCode() == Status.Code.UNAVAILABLE;
-  }
-
-  private static void backoff(int retryCount) {
-    VvmLog.i(TAG, "backoff, count: " + retryCount);
-    try {
-      long millis = (1 << retryCount) * 1000;
-      Thread.sleep(millis);
-    } catch (InterruptedException e) {
-      VvmLog.w(TAG, "interrupted");
-      Thread.currentThread().interrupt();
-    }
-  }
-
-  private void updateTranscriptionAndState(String transcript, int newState) {
-    databaseHelper.setTranscriptionAndState(transcript, newState);
-  }
-
-  private void updateTranscriptionState(int newState) {
-    databaseHelper.setTranscriptionState(newState);
-  }
-
-  private TranscribeVoicemailRequest makeRequest() {
-    return TranscribeVoicemailRequest.newBuilder()
-        .setVoicemailData(audioData)
-        .setAudioFormat(encoding)
-        .build();
-  }
-
-  // Uses try-with-resource
-  @TargetApi(android.os.Build.VERSION_CODES.M)
-  private boolean readAndValidateAudioFile() {
-    if (voicemailUri == null) {
-      VvmLog.i(TAG, "Transcriber.readAndValidateAudioFile, file not found.");
-      return false;
-    } else {
-      VvmLog.i(TAG, "Transcriber.readAndValidateAudioFile, reading: " + voicemailUri);
-    }
-
-    try (InputStream in = context.getContentResolver().openInputStream(voicemailUri)) {
-      audioData = ByteString.readFrom(in);
-      VvmLog.i(TAG, "Transcriber.readAndValidateAudioFile, read " + audioData.size() + " bytes");
-    } catch (IOException e) {
-      VvmLog.e(TAG, "Transcriber.readAndValidateAudioFile", e);
-      return false;
-    }
-
-    if (audioData.startsWith(ByteString.copyFromUtf8(AMR_PREFIX))) {
-      encoding = AudioFormat.AMR_NB_8KHZ;
-    } else {
-      VvmLog.i(TAG, "Transcriber.readAndValidateAudioFile, unknown encoding");
-      encoding = AudioFormat.AUDIO_FORMAT_UNSPECIFIED;
-      return false;
-    }
-
-    return true;
-  }
-
-  private static Uri getVoicemailUri(JobWorkItem workItem) {
-    return workItem.getIntent().getParcelableExtra(TranscriptionService.EXTRA_VOICEMAIL_URI);
-  }
-}
diff --git a/java/com/android/voicemail/impl/transcribe/VoicemailCompat.java b/java/com/android/voicemail/impl/transcribe/VoicemailCompat.java
deleted file mode 100644
index c6e30c6de..000000000
--- a/java/com/android/voicemail/impl/transcribe/VoicemailCompat.java
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-package com.android.voicemail.impl.transcribe;
-
-/**
- * Provide access to new API constants before they're publicly available
- *
- * <p>Copied from android.provider.VoicemailContract.Voicemails. These should become public in O-MR1
- * and these constants can be removed then.
- */
-public class VoicemailCompat {
-
-  /**
-   * The state of the voicemail transcription.
-   *
-   * <p>Possible values: {@link #TRANSCRIPTION_NOT_STARTED}, {@link #TRANSCRIPTION_IN_PROGRESS},
-   * {@link #TRANSCRIPTION_FAILED}, {@link #TRANSCRIPTION_AVAILABLE}.
-   *
-   * <p>Type: INTEGER
-   */
-  public static final String TRANSCRIPTION_STATE = "transcription_state";
-
-  /**
-   * Value of {@link #TRANSCRIPTION_STATE} when the voicemail transcription has not yet been
-   * attempted.
-   */
-  public static final int TRANSCRIPTION_NOT_STARTED = 0;
-
-  /**
-   * Value of {@link #TRANSCRIPTION_STATE} when the voicemail transcription has begun but is not yet
-   * complete.
-   */
-  public static final int TRANSCRIPTION_IN_PROGRESS = 1;
-
-  /**
-   * Value of {@link #TRANSCRIPTION_STATE} when the voicemail transcription has been attempted and
-   * failed.
-   */
-  public static final int TRANSCRIPTION_FAILED = 2;
-
-  /**
-   * Value of {@link #TRANSCRIPTION_STATE} when the voicemail transcription has completed and the
-   * result has been stored in the {@link #TRANSCRIPTION} column.
-   */
-  public static final int TRANSCRIPTION_AVAILABLE = 3;
-}
diff --git a/java/com/android/voicemail/impl/transcribe/grpc/TranscriptionClient.java b/java/com/android/voicemail/impl/transcribe/grpc/TranscriptionClient.java
deleted file mode 100644
index 27603d910..000000000
--- a/java/com/android/voicemail/impl/transcribe/grpc/TranscriptionClient.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-package com.android.voicemail.impl.transcribe.grpc;
-
-import android.support.annotation.Nullable;
-import android.support.annotation.WorkerThread;
-import com.android.dialer.common.Assert;
-import com.google.internal.communications.voicemailtranscription.v1.TranscribeVoicemailRequest;
-import com.google.internal.communications.voicemailtranscription.v1.TranscribeVoicemailResponse;
-import com.google.internal.communications.voicemailtranscription.v1.VoicemailTranscriptionServiceGrpc;
-import io.grpc.Status;
-import io.grpc.StatusRuntimeException;
-
-/** Wrapper around Grpc transcription server stub */
-public class TranscriptionClient {
-
-  private final VoicemailTranscriptionServiceGrpc.VoicemailTranscriptionServiceBlockingStub stub;
-
-  /** Wraps the server response and status objects, either of which may be null. */
-  public static class TranscriptionResponseWrapper {
-    public final TranscribeVoicemailResponse response;
-    public final Status status;
-
-    public TranscriptionResponseWrapper(
-        @Nullable TranscribeVoicemailResponse response, @Nullable Status status) {
-      Assert.checkArgument(!(response == null && status == null));
-      this.response = response;
-      this.status = status;
-    }
-  }
-
-  TranscriptionClient(
-      VoicemailTranscriptionServiceGrpc.VoicemailTranscriptionServiceBlockingStub stub) {
-    this.stub = stub;
-  }
-
-  @WorkerThread
-  public TranscriptionResponseWrapper transcribeVoicemail(TranscribeVoicemailRequest request) {
-    TranscribeVoicemailResponse response = null;
-    Status status = null;
-    try {
-      response = stub.transcribeVoicemail(request);
-    } catch (StatusRuntimeException e) {
-      status = e.getStatus();
-    }
-    return new TranscriptionClient.TranscriptionResponseWrapper(response, status);
-  }
-}
diff --git a/java/com/android/voicemail/impl/transcribe/grpc/TranscriptionClientFactory.java b/java/com/android/voicemail/impl/transcribe/grpc/TranscriptionClientFactory.java
deleted file mode 100644
index 6101ed516..000000000
--- a/java/com/android/voicemail/impl/transcribe/grpc/TranscriptionClientFactory.java
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-package com.android.voicemail.impl.transcribe.grpc;
-
-import android.content.Context;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
-import android.text.TextUtils;
-import com.android.dialer.common.Assert;
-import com.android.dialer.common.LogUtil;
-import com.android.voicemail.impl.transcribe.TranscriptionConfigProvider;
-import com.google.internal.communications.voicemailtranscription.v1.VoicemailTranscriptionServiceGrpc;
-import io.grpc.CallOptions;
-import io.grpc.Channel;
-import io.grpc.ClientCall;
-import io.grpc.ClientInterceptor;
-import io.grpc.ClientInterceptors;
-import io.grpc.ForwardingClientCall;
-import io.grpc.ManagedChannel;
-import io.grpc.ManagedChannelBuilder;
-import io.grpc.Metadata;
-import io.grpc.MethodDescriptor;
-import io.grpc.okhttp.OkHttpChannelBuilder;
-import java.security.MessageDigest;
-
-/**
- * Factory for creating grpc clients that talk to the transcription server. This allows all clients
- * to share the same channel, which is relatively expensive to create.
- */
-public class TranscriptionClientFactory {
-  private static final String DIGEST_ALGORITHM_SHA1 = "SHA1";
-  private static final char[] HEX_UPPERCASE = {
-    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
-  };
-
-  private final TranscriptionConfigProvider configProvider;
-  private final ManagedChannel originalChannel;
-  private final String packageName;
-  private final String cert;
-
-  public TranscriptionClientFactory(Context context, TranscriptionConfigProvider configProvider) {
-    this(context, configProvider, getManagedChannel(configProvider));
-  }
-
-  public TranscriptionClientFactory(
-      Context context, TranscriptionConfigProvider configProvider, ManagedChannel managedChannel) {
-    this.configProvider = configProvider;
-    this.packageName = context.getPackageName();
-    this.cert = getCertificateFingerprint(context);
-    originalChannel = managedChannel;
-  }
-
-  public TranscriptionClient getClient() {
-    LogUtil.enterBlock("TranscriptionClientFactory.getClient");
-    Assert.checkState(!originalChannel.isShutdown());
-    Channel channel =
-        ClientInterceptors.intercept(
-            originalChannel,
-            new Interceptor(
-                packageName, cert, configProvider.getApiKey(), configProvider.getAuthToken()));
-    return new TranscriptionClient(VoicemailTranscriptionServiceGrpc.newBlockingStub(channel));
-  }
-
-  public void shutdown() {
-    LogUtil.enterBlock("TranscriptionClientFactory.shutdown");
-    originalChannel.shutdown();
-  }
-
-  private static ManagedChannel getManagedChannel(TranscriptionConfigProvider configProvider) {
-    ManagedChannelBuilder<OkHttpChannelBuilder> builder =
-        OkHttpChannelBuilder.forTarget(configProvider.getServerAddress());
-    // Only use plaintext for debugging
-    if (configProvider.shouldUsePlaintext()) {
-      // Just passing 'false' doesnt have the same effect as not setting this field
-      builder.usePlaintext(true);
-    }
-    return builder.build();
-  }
-
-  private static String getCertificateFingerprint(Context context) {
-    try {
-      PackageInfo packageInfo =
-          context
-              .getPackageManager()
-              .getPackageInfo(context.getPackageName(), PackageManager.GET_SIGNATURES);
-      if (packageInfo != null
-          && packageInfo.signatures != null
-          && packageInfo.signatures.length > 0) {
-        MessageDigest messageDigest = MessageDigest.getInstance(DIGEST_ALGORITHM_SHA1);
-        if (messageDigest == null) {
-          LogUtil.w(
-              "TranscriptionClientFactory.getCertificateFingerprint", "error getting digest.");
-          return null;
-        }
-        byte[] bytes = messageDigest.digest(packageInfo.signatures[0].toByteArray());
-        if (bytes == null) {
-          LogUtil.w(
-              "TranscriptionClientFactory.getCertificateFingerprint", "empty message digest.");
-          return null;
-        }
-
-        int length = bytes.length;
-        StringBuilder out = new StringBuilder(length * 2);
-        for (int i = 0; i < length; i++) {
-          out.append(HEX_UPPERCASE[(bytes[i] & 0xf0) >>> 4]);
-          out.append(HEX_UPPERCASE[bytes[i] & 0x0f]);
-        }
-        return out.toString();
-      } else {
-        LogUtil.w(
-            "TranscriptionClientFactory.getCertificateFingerprint",
-            "failed to get package signature.");
-      }
-    } catch (Exception e) {
-      LogUtil.e(
-          "TranscriptionClientFactory.getCertificateFingerprint",
-          "error getting certificate fingerprint.",
-          e);
-    }
-
-    return null;
-  }
-
-  private static final class Interceptor implements ClientInterceptor {
-    private final String packageName;
-    private final String cert;
-    private final String apiKey;
-    private final String authToken;
-
-    private static final Metadata.Key<String> API_KEY_HEADER =
-        Metadata.Key.of("X-Goog-Api-Key", Metadata.ASCII_STRING_MARSHALLER);
-    private static final Metadata.Key<String> ANDROID_PACKAGE_HEADER =
-        Metadata.Key.of("X-Android-Package", Metadata.ASCII_STRING_MARSHALLER);
-    private static final Metadata.Key<String> ANDROID_CERT_HEADER =
-        Metadata.Key.of("X-Android-Cert", Metadata.ASCII_STRING_MARSHALLER);
-    private static final Metadata.Key<String> AUTHORIZATION_HEADER =
-        Metadata.Key.of("authorization", Metadata.ASCII_STRING_MARSHALLER);
-
-    public Interceptor(String packageName, String cert, String apiKey, String authToken) {
-      this.packageName = packageName;
-      this.cert = cert;
-      this.apiKey = apiKey;
-      this.authToken = authToken;
-    }
-
-    @Override
-    public <ReqT, RespT> ClientCall<ReqT, RespT> interceptCall(
-        MethodDescriptor<ReqT, RespT> method, CallOptions callOptions, Channel next) {
-      LogUtil.enterBlock(
-          "TranscriptionClientFactory.interceptCall, intercepted " + method.getFullMethodName());
-      ClientCall<ReqT, RespT> call = next.newCall(method, callOptions);
-
-      call =
-          new ForwardingClientCall.SimpleForwardingClientCall<ReqT, RespT>(call) {
-            @Override
-            public void start(Listener<RespT> responseListener, Metadata headers) {
-              if (!TextUtils.isEmpty(packageName)) {
-                LogUtil.i(
-                    "TranscriptionClientFactory.interceptCall",
-                    "attaching package name: " + packageName);
-                headers.put(ANDROID_PACKAGE_HEADER, packageName);
-              }
-              if (!TextUtils.isEmpty(cert)) {
-                LogUtil.i("TranscriptionClientFactory.interceptCall", "attaching android cert");
-                headers.put(ANDROID_CERT_HEADER, cert);
-              }
-              if (!TextUtils.isEmpty(apiKey)) {
-                LogUtil.i("TranscriptionClientFactory.interceptCall", "attaching API Key");
-                headers.put(API_KEY_HEADER, apiKey);
-              }
-              if (!TextUtils.isEmpty(authToken)) {
-                LogUtil.i("TranscriptionClientFactory.interceptCall", "attaching auth token");
-                headers.put(AUTHORIZATION_HEADER, "Bearer " + authToken);
-              }
-              super.start(responseListener, headers);
-            }
-          };
-      return call;
-    }
-  }
-}
diff --git a/java/com/android/voicemail/impl/transcribe/grpc/voicemail_transcription.proto b/java/com/android/voicemail/impl/transcribe/grpc/voicemail_transcription.proto
deleted file mode 100644
index 4b1e19b8a..000000000
--- a/java/com/android/voicemail/impl/transcribe/grpc/voicemail_transcription.proto
+++ /dev/null
@@ -1,44 +0,0 @@
-// LINT.IfChange
-
-syntax = "proto2";
-
-package google.internal.communications.voicemailtranscription.v1;
-
-option java_multiple_files = true;
-option java_package = "com.google.internal.communications.voicemailtranscription.v1";
-option optimize_for = LITE_RUNTIME;
-
-// Enum that specifies supported audio formats.
-enum AudioFormat {
-  // Default but invalid value.
-  AUDIO_FORMAT_UNSPECIFIED = 0;
-
-  // Adaptive Multi-Rate Narrowband, 8kHz sampling frequency.
-  // https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec
-  AMR_NB_8KHZ = 1;
-}
-
-// Request for synchronous voicemail transcription.
-message TranscribeVoicemailRequest {
-  // Voicemail audio file containing the raw bytes we receive from the carrier.
-  optional bytes voicemail_data = 1;
-
-  // Audio format of the voicemail file.
-  optional AudioFormat audio_format = 2;
-}
-
-// Response for synchronous voicemail transcription.
-message TranscribeVoicemailResponse {
-  // The transcribed text of the voicemail.
-  optional string transcript = 1;
-}
-
-// RPC service for transcribing voicemails.
-service VoicemailTranscriptionService {
-  // Returns a transcript of the given voicemail.
-  rpc TranscribeVoicemail(TranscribeVoicemailRequest)
-      returns (TranscribeVoicemailResponse) {}
-}
-
-// LINT.ThenChange(//depot/google3/google/internal/communications/voicemailtranscription/v1/\
-//         voicemail_transcription.proto)