Removes Experimental hotword-always-on feature.

chrome/browser/resources/app_list/speech_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 class to Manage both offline / online speech recognition.
  */
 
 <include src="plugin_manager.js"/>
 <include src="audio_manager.js"/>
@@ skipping 67 matching lines @@
     this.audioManager_.addEventListener(
         'audio', pluginManager.sendAudioData.bind(pluginManager));
     if (this.shown_) {
       this.pluginManager_.startRecognizer();
       this.audioManager_.start();
       this.setState_(SpeechState.HOTWORD_RECOGNIZING);
     } else {
       this.pluginManager_.stopRecognizer();
       this.setState_(SpeechState.READY);
     }
-    chrome.send('setHotwordRecognizerState', [true]);
   };
 
   /**
    * Called when the hotword is recognized.
    *
    * @private
    */
   SpeechManager.prototype.onHotwordRecognized_ = function() {
     if (this.state != SpeechState.HOTWORD_RECOGNIZING)
       return;
@@ skipping 75 matching lines @@
       var pluginManager = new speech.PluginManager(
           this.onHotwordRecognizerReady_.bind(this),
           this.onHotwordRecognized_.bind(this));
       pluginManager.scheduleInitialize(
           this.audioManager_.sampleRate, 'chrome://app-list/hotword.data');
     } else {
       if (!recognizer)
         return;
       document.body.removeChild(recognizer);
       this.pluginManager_ = null;
-      chrome.send('setHotwordRecognizerState', [false]);
       if (this.state == SpeechState.HOTWORD_RECOGNIZING)
         this.setState(SpeechState.READY);
     }
   };
 
   /**
-   * Starts the hotword recognizer.
+   * Called when the app-list bubble is shown.
    */
-  SpeechManager.prototype.startHotwordRecognition = function() {
+  SpeechManager.prototype.onShown = function() {
+    this.shown_ = true;
     if (!this.pluginManager_)
       return;
 
-    if (this.state == SpeechState.HOTWORD_RECOGNIZING)
+    if (this.state == SpeechState.HOTWORD_RECOGNIZING) {
+      console.warn('Already in recognition state...');
       return;
+    }
 
     this.pluginManager_.startRecognizer();
     this.audioManager_.start();
     this.setState_(SpeechState.HOTWORD_RECOGNIZING);
   };
 
   /**
-   * Stops the hotword recognizer.
-   */
-  SpeechManager.prototype.stopHotwordRecognition = function() {
-    if (!this.pluginManager_)
-      return;
-
-    if (this.state != SpeechState.HOTWORD_RECOGNIZING)
-      return;
-
-    this.pluginManager_.stopRecognizer();
-    this.audioManager_.stop();
-    this.setState_(SpeechState.READY);
-  };
-
-  /**
-   * Called when the app-list bubble is shown.
-   */
-  SpeechManager.prototype.onShown = function() {
-    this.shown_ = true;
-    if (this.state == SpeechState.READY)
-      this.startHotwordRecognition();
-  };
-
-  /**
    * Called when the app-list bubble is hidden.
    */
   SpeechManager.prototype.onHidden = function() {
     this.shown_ = false;
     if (this.pluginManager_)
       this.pluginManager_.stopRecognizer();
 
     // SpeechRecognition is asynchronous.
     this.audioManager_.stop();
     if (this.state == SpeechState.RECOGNIZING ||
@@ skipping 19 matching lines @@
       if (this.audioManager_.state == speech.AudioState.STOPPED)
         this.audioManager_.start();
       this.speechRecognitionManager_.start();
     }
   };
 
   return {
     SpeechManager: SpeechManager
   };
 });