Fine tuned availability of hotword plugin.

chrome/browser/ui/app_list/start_page_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_APP_LIST_START_PAGE_SERVICE_H_
 #define CHROME_BROWSER_UI_APP_LIST_START_PAGE_SERVICE_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 30 matching lines @@
 
   void ToggleSpeechRecognition();
 
   // They return essentially the same web contents but might return NULL when
   // some flag disables the feature.
   content::WebContents* GetStartPageContents();
   content::WebContents* GetSpeechRecognitionContents();
 
   RecommendedApps* recommended_apps() { return recommended_apps_.get(); }
   Profile* profile() { return profile_; }
+  SpeechRecognitionState state() { return state_; }
   void OnSpeechResult(const base::string16& query, bool is_final);
   void OnSpeechSoundLevelChanged(int16 level);
   void OnSpeechRecognitionStateChanged(SpeechRecognitionState new_state);
 
  private:
-  // A BrowserContextKeyedServiceFactory for this service.
-  class Factory;
+  friend class StartPageServiceFactory;
 
   // ProfileDestroyObserver to shutdown the service on exiting. WebContents
   // depends on the profile and needs to be closed before the profile and its
   // keyed service shutdown.
   class ProfileDestroyObserver;
 
   // The WebContentsDelegate implementation for the start page. This allows
   // getUserMedia() request from the web contents.
   class StartPageWebContentsDelegate;
 
   explicit StartPageService(Profile* profile);
   virtual ~StartPageService();
 
   // BrowserContextKeyedService overrides:
   virtual void Shutdown() OVERRIDE;
 
   Profile* profile_;
   scoped_ptr<content::WebContents> contents_;
   scoped_ptr<StartPageWebContentsDelegate> contents_delegate_;
   scoped_ptr<ProfileDestroyObserver> profile_destroy_observer_;
   scoped_ptr<RecommendedApps> recommended_apps_;
+  SpeechRecognitionState state_;
   ObserverList<StartPageObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(StartPageService);
 };
 
 }  // namespace app_list
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_START_PAGE_SERVICE_H_