Delete the old hotwording integration.

chrome/browser/resources/app_list/speech_recognition_manager.js

-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-/**
- * @fileoverview The manager of speech recognition.
- */
-
-cr.define('speech', function() {
-  'use strict';
-
-  /**
-   * @constructor
-   */
-  function SpeechRecognitionManager(delegate) {
-    this.isActive = true;
-    this.delegate_ = delegate;
-
-    this.recognizer_ = new window.webkitSpeechRecognition();
-    this.recognizer_.continuous = true;
-    this.recognizer_.interimResults = true;
-    this.recognizer_.lang = navigator.language;
-
-    this.recognizer_.onresult = this.onRecognizerResult_.bind(this);
-    if (this.delegate_) {
-      this.recognizer_.onstart =
-          this.delegate_.onSpeechRecognitionStarted.bind(this.delegate_);
-      this.recognizer_.onend =
-          this.delegate_.onSpeechRecognitionEnded.bind(this.delegate_);
-      this.recognizer_.onspeechstart =
-          this.delegate_.onSpeechStarted.bind(this.delegate_);
-      this.recognizer_.onspeechend =
-          this.delegate_.onSpeechEnded.bind(this.delegate_);
-      this.recognizer_.onerror = this.onRecognizerError_.bind(this);
-    }
-  }
-
-  /**
-   * Called when new speech recognition results arrive.
-   *
-   * @param {Event} speechEvent The event to contain the recognition results.
-   * @private
-   */
-  SpeechRecognitionManager.prototype.onRecognizerResult_ = function(
-      speechEvent) {
-    // Do not collect interim result for now.
-    var result = '';
-    var isFinal = false;
-    for (var i = 0; i < speechEvent.results.length; i++) {
-      if (speechEvent.results[i].isFinal)
-        isFinal = true;
-      result += speechEvent.results[i][0].transcript;
-    }
-    if (this.delegate_)
-      this.delegate_.onSpeechRecognized(result, isFinal);
-  };
-
-  /**
-   * Called when an error happens in speech recognition.
-   *
-   * @param {SpeechRecognitionError} error The error data.
-   * @private
-   */
-  SpeechRecognitionManager.prototype.onRecognizerError_ = function(error) {
-    if (error.error == 'language-not-supported') {
-      // Falls back to English and restart.
-      this.recognizer_.lang = 'en-US';
-      this.start();
-    } else {
-      this.delegate_.onSpeechRecognitionError(error);
-    }
-  };
-
-  /**
-   * Starts the speech recognition through webkitSpeechRecognition.
-   */
-  SpeechRecognitionManager.prototype.start = function() {
-    this.recognizer_.start();
-  };
-
-  /**
-   * Stops the ongoing speech recognition.
-   */
-  SpeechRecognitionManager.prototype.stop = function() {
-    this.recognizer_.abort();
-  };
-
-  return {
-    SpeechRecognitionManager: SpeechRecognitionManager
-  };
-});