CameraPresenceNotifier observers removal supported.

chrome/browser/chromeos/login/managed/locally_managed_user_creation_screen.h

 // Copyright (c) 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_CHROMEOS_LOGIN_MANAGED_LOCALLY_MANAGED_USER_CREATION_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_MANAGED_LOCALLY_MANAGED_USER_CREATION_SCREEN_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "chrome/browser/chromeos/camera_presence_notifier.h"
 #include "chrome/browser/chromeos/login/managed/managed_user_creation_controller.h"
 #include "chrome/browser/chromeos/login/screens/wizard_screen.h"
 #include "chrome/browser/chromeos/net/network_portal_detector.h"
 #include "chrome/browser/image_decoder.h"
 #include "chrome/browser/ui/webui/chromeos/login/locally_managed_user_creation_screen_handler.h"
 #include "ui/gfx/image/image_skia.h"
 
 class Profile;
 
 namespace chromeos {
 
 class NetworkState;
 
 // Class that controls screen showing ui for locally managed user creation.
 class LocallyManagedUserCreationScreen
     : public WizardScreen,
       public LocallyManagedUserCreationScreenHandler::Delegate,
       public ManagedUserCreationController::StatusConsumer,
       public ImageDecoder::Delegate,
-      public NetworkPortalDetector::Observer {
+      public NetworkPortalDetector::Observer,
+      public CameraPresenceNotifier::Observer {
  public:
   LocallyManagedUserCreationScreen(
       ScreenObserver* observer,
       LocallyManagedUserCreationScreenHandler* actor);
   virtual ~LocallyManagedUserCreationScreen();
 
   // Makes screen to show message about inconsistency in manager login flow
   // (e.g. password change detected, invalid OAuth token, etc).
   // Called when manager user is successfully authenticated, so ui elements
   // should result in forced logout.
   void ShowManagerInconsistentStateErrorScreen();
 
   // Called when authentication fails for manager with provided password.
   // Displays wrong password message on manager selection screen.
   void OnManagerLoginFailure();
 
   // Called when manager is successfully authenticated and account is in
   // consistent state.
   void OnManagerFullyAuthenticated(Profile* manager_profile);
 
   // Called when manager is successfully authenticated against cryptohome, but
   // OAUTH token validation hasn't completed yet.
   // Results in spinner indicating that creation is in process.
   void OnManagerCryptohomeAuthenticated();
 
   // Shows initial screen where managed user name/password are defined and
   // manager is selected.
   void ShowInitialScreen();
 
+  // CameraPresenceNotifier::Observer implementation:
+  virtual void OnCameraPresenceCheckDone(bool is_camera_present) OVERRIDE;
+
   // WizardScreen implementation:
   virtual void PrepareToShow() OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void Hide() OVERRIDE;
   virtual std::string GetName() const OVERRIDE;
 
   // LocallyManagedUserCreationScreenHandler::Delegate implementation:
   virtual void OnActorDestroyed(LocallyManagedUserCreationScreenHandler* actor)
       OVERRIDE;
   virtual void CreateManagedUser(
@@ skipping 21 matching lines @@
 
   // NetworkPortalDetector::Observer implementation:
   virtual void OnPortalDetectionCompleted(
           const NetworkState* network,
           const NetworkPortalDetector::CaptivePortalState& state) OVERRIDE;
 
   // TODO(antrim) : this is an explicit code duplications with UserImageScreen.
   // It should be removed by issue 251179.
 
   // LocallyManagedUserCreationScreenHandler::Delegate (image) implementation:
-  virtual void OnCameraPresenceCheckDone(bool is_camera_present) OVERRIDE;
   virtual void OnPhotoTaken(const std::string& raw_data) OVERRIDE;
   virtual void OnImageSelected(const std::string& image_url,
                                const std::string& image_type) OVERRIDE;
   virtual void OnImageAccepted() OVERRIDE;
   // ImageDecoder::Delegate overrides:
   virtual void OnImageDecoded(const ImageDecoder* decoder,
                               const SkBitmap& decoded_image) OVERRIDE;
   virtual void OnDecodeImageFailed(const ImageDecoder* decoder) OVERRIDE;
 
  private:
@@ skipping 14 matching lines @@
   bool apply_photo_after_decoding_;
   int selected_image_;
 
   DISALLOW_COPY_AND_ASSIGN(LocallyManagedUserCreationScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_MANAGED_LOCALLY_MANAGED_USER_CREATION_SCREEN_H_