Removes Experimental hotword-always-on feature.

chrome/browser/resources/app_list/speech_manager.js

Index: chrome/browser/resources/app_list/speech_manager.js
diff --git a/chrome/browser/resources/app_list/speech_manager.js b/chrome/browser/resources/app_list/speech_manager.js
index c37d1a12d0b3aaa6d2dced4e4b440ebc786ebc7c..6c3673a3dd2406f8f2dd53fef4159b7db4456d0c 100644
--- a/chrome/browser/resources/app_list/speech_manager.js
+++ b/chrome/browser/resources/app_list/speech_manager.js
@@ -85,7 +85,6 @@ cr.define('speech', function() {
       this.pluginManager_.stopRecognizer();
       this.setState_(SpeechState.READY);
     }
-    chrome.send('setHotwordRecognizerState', [true]);
   };
 
   /**
@@ -181,21 +180,23 @@ cr.define('speech', function() {
         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();
@@ -203,30 +204,6 @@ cr.define('speech', function() {
   };
 
   /**
-   * 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() {