mash: Migrate MediaDelegate ownership and access to WmShell.

ash/shell.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 ASH_SHELL_H_
 #define ASH_SHELL_H_
 
 #include <memory>
 #include <utility>
 #include <vector>
@@ skipping 92 matching lines @@
 class GPUSupport;
 class HighContrastController;
 class KeyboardUMAEventFilter;
 class LinkHandlerModelFactory;
 class LocaleNotificationController;
 class LockStateController;
 enum class LoginStatus;
 class MagnificationController;
 class MaximizeModeController;
 class MaximizeModeWindowManager;
-class MediaDelegate;
 class MouseCursorEventFilter;
 class MruWindowTracker;
 class NewWindowDelegate;
 class OverlayEventFilter;
 class PartialMagnificationController;
 class PointerWatcherDelegate;
 class PowerButtonController;
 class PowerEventObserver;
 class ProjectingObserver;
 class ResizeShadowController;
@@ skipping 265 matching lines @@
   }
 
   AccessibilityDelegate* accessibility_delegate() {
     return accessibility_delegate_.get();
   }
 
   NewWindowDelegate* new_window_delegate() {
     return new_window_delegate_.get();
   }
 
-  MediaDelegate* media_delegate() { return media_delegate_.get(); }
-
   HighContrastController* high_contrast_controller() {
     return high_contrast_controller_.get();
   }
 
   MagnificationController* magnification_controller() {
     return magnification_controller_.get();
   }
 
   PartialMagnificationController* partial_magnification_controller() {
     return partial_magnification_controller_.get();
@@ skipping 200 matching lines @@
 
   std::vector<WindowAndBoundsPair> to_restore_;
 
   std::unique_ptr<UserMetricsRecorder> user_metrics_recorder_;
   std::unique_ptr<AcceleratorController> accelerator_controller_;
   std::unique_ptr<ShellDelegate> delegate_;
   std::unique_ptr<UserWallpaperDelegate> user_wallpaper_delegate_;
   std::unique_ptr<SessionStateDelegate> session_state_delegate_;
   std::unique_ptr<AccessibilityDelegate> accessibility_delegate_;
   std::unique_ptr<NewWindowDelegate> new_window_delegate_;
-  std::unique_ptr<MediaDelegate> media_delegate_;
   std::unique_ptr<PointerWatcherDelegate> pointer_watcher_delegate_;
   std::unique_ptr<ShelfDelegate> shelf_delegate_;
   std::unique_ptr<ShelfItemDelegateManager> shelf_item_delegate_manager_;
   std::unique_ptr<ShelfWindowWatcher> shelf_window_watcher_;
 
   std::unique_ptr<ShelfModel> shelf_model_;
   std::unique_ptr<WindowPositioner> window_positioner_;
 
   std::unique_ptr<DragDropController> drag_drop_controller_;
   std::unique_ptr<ResizeShadowController> resize_shadow_controller_;
@@ skipping 100 matching lines @@
   base::SequencedWorkerPool* blocking_pool_;
 
   bool in_mus_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_