Adds HotwordPrivate API for integrating the hotword feature to AppLauncher

chrome/browser/ui/app_list/app_list_view_delegate.h

 // Copyright (c) 2012 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_APP_LIST_VIEW_DELEGATE_H_
 #define CHROME_BROWSER_UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/scoped_observer.h"
 #include "chrome/browser/profiles/profile_info_cache_observer.h"
+#include "chrome/browser/search/hotword_client.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/ui/app_list/chrome_signin_delegate.h"
 #include "chrome/browser/ui/app_list/start_page_observer.h"
 #include "components/signin/core/browser/signin_manager_base.h"
 #include "ui/app_list/app_list_view_delegate.h"
 
 class AppListControllerDelegate;
 class Profile;
 
 namespace app_list {
 class SearchController;
 class SpeechUIModel;
 }
 
 namespace base {
 class FilePath;
 }
 
 namespace gfx {
 class ImageSkia;
 }
 
 #if defined(USE_ASH)
 class AppSyncUIStateWatcher;
 #endif
 
 class AppListViewDelegate : public app_list::AppListViewDelegate,
                             public app_list::StartPageObserver,
+                            public HotwordClient,
                             public ProfileInfoCacheObserver,
                             public SigninManagerBase::Observer,
                             public SigninManagerFactory::Observer {
  public:
   AppListViewDelegate(Profile* profile,
                       AppListControllerDelegate* controller);
   virtual ~AppListViewDelegate();
 
  private:
   // Updates the app list's current profile and ProfileMenuItems.
@@ skipping 36 matching lines @@
   virtual void RemoveObserver(
       app_list::AppListViewDelegateObserver* observer) OVERRIDE;
 
   // Overridden from app_list::StartPageObserver:
   virtual void OnSpeechResult(const base::string16& result,
                               bool is_final) OVERRIDE;
   virtual void OnSpeechSoundLevelChanged(int16 level) OVERRIDE;
   virtual void OnSpeechRecognitionStateChanged(
       app_list::SpeechRecognitionState new_state) OVERRIDE;
 
+  // Overridden from HotwordClient:
+  virtual void OnHotwordStateChanged(bool enabled) OVERRIDE;
+  virtual void OnHotwordRecognized() OVERRIDE;
+
   // Overridden from SigninManagerFactory::Observer:
   virtual void SigninManagerCreated(SigninManagerBase* manager) OVERRIDE;
   virtual void SigninManagerShutdown(SigninManagerBase* manager) OVERRIDE;
 
   // Overridden from SigninManagerBase::Observer:
   virtual void GoogleSigninFailed(const GoogleServiceAuthError& error) OVERRIDE;
   virtual void GoogleSigninSucceeded(const std::string& username,
                                      const std::string& password) OVERRIDE;
   virtual void GoogleSignedOut(const std::string& username) OVERRIDE;
 
@@ skipping 29 matching lines @@
   ObserverList<app_list::AppListViewDelegateObserver> observers_;
 
   // Used to track the SigninManagers that this instance is observing so that
   // this instance can be removed as an observer on its destruction.
   ScopedObserver<SigninManagerBase, AppListViewDelegate> scoped_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListViewDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_