Removes Experimental hotword-always-on feature.

chrome/browser/ui/webui/app_list/start_page_handler.h

Index: chrome/browser/ui/webui/app_list/start_page_handler.h
diff --git a/chrome/browser/ui/webui/app_list/start_page_handler.h b/chrome/browser/ui/webui/app_list/start_page_handler.h
index 76d6b0b0f94a558d871968b5eee97caa985b3f65..3e4692b06b29a4a12952df2d2d48e2918c59bad1 100644
--- a/chrome/browser/ui/webui/app_list/start_page_handler.h
+++ b/chrome/browser/ui/webui/app_list/start_page_handler.h
@@ -8,12 +8,10 @@
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/prefs/pref_change_registrar.h"
-#include "chrome/browser/ui/app_list/hotword_background_activity_delegate.h"
 #include "chrome/browser/ui/app_list/recommended_apps_observer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_ui_message_handler.h"
-#include "ui/app_list/speech_ui_model_observer.h"
 
 namespace base {
 class ListValue;
@@ -21,13 +19,11 @@ class ListValue;
 
 namespace app_list {
 
-class HotwordBackgroundActivityMonitor;
 class RecommendedApps;
 
 // Handler for the app launcher start page.
 class StartPageHandler : public content::WebUIMessageHandler,
                          public content::NotificationObserver,
-                         public HotwordBackgroundActivityDelegate,
                          public RecommendedAppsObserver {
  public:
   StartPageHandler();
@@ -37,15 +33,11 @@ class StartPageHandler : public content::WebUIMessageHandler,
   // content::WebUIMessageHandler overrides:
   virtual void RegisterMessages() OVERRIDE;
 
-  // content::NotificationObserver overrides:
+  // Overridden from content::NotificationObserver:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
-  // HotwordBackgroundActivityDelegate overrides:
-  virtual int GetRenderProcessID() OVERRIDE;
-  virtual void OnHotwordBackgroundActivityChanged() OVERRIDE;
-
   // RecommendedAppsObserver overrdies:
   virtual void OnRecommendedAppsChanged() OVERRIDE;
 
@@ -60,21 +52,14 @@ class StartPageHandler : public content::WebUIMessageHandler,
   void OnHotwordEnabledChanged();
 #endif
 
-  // Returns true if the hotword recognizer should run background.
-  bool ShouldRunHotwordBackground();
-
   // JS callbacks.
   void HandleInitialize(const base::ListValue* args);
   void HandleLaunchApp(const base::ListValue* args);
-  void HandleHotwordRecognizerState(const base::ListValue* args);
   void HandleSpeechResult(const base::ListValue* args);
   void HandleSpeechSoundLevel(const base::ListValue* args);
   void HandleSpeechRecognition(const base::ListValue* args);
 
   RecommendedApps* recommended_apps_;  // Not owned.
-  bool has_hotword_recognizer_;
-  scoped_ptr<HotwordBackgroundActivityMonitor> hotword_monitor_;
-  SpeechRecognitionState last_state_;
   PrefChangeRegistrar pref_change_registrar_;
   content::NotificationRegistrar registrar_;