Add GetWebContents to ShellDelegate.

ash/common/shell_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 ASH_COMMON_SHELL_DELEGATE_H_
 #define ASH_COMMON_SHELL_DELEGATE_H_
 
 #include <memory>
 #include <string>
 
 #include "ash/ash_export.h"
 #include "base/callback.h"
 #include "base/strings/string16.h"
 
 class GURL;
 
+namespace content {
+class WebContents;
+}
+
 namespace gfx {
 class Image;
 }
 
 namespace keyboard {
 class KeyboardUI;
 }
 
 namespace service_manager {
 class Connector;
@@ skipping 49 matching lines @@
   // can perform tasks necessary before the shell is initialized.
   virtual void PreInit() = 0;
 
   // Called at the beginninig of Shell destructor so that
   // delegate can use Shell instance to perform cleanup tasks.
   virtual void PreShutdown() = 0;
 
   // Invoked when the user uses Ctrl-Shift-Q to close chrome.
   virtual void Exit() = 0;
 
-  // Create a shell-specific keyboard::KeyboardUI
+  // Creates a shell-specific keyboard::KeyboardUI
   virtual keyboard::KeyboardUI* CreateKeyboardUI() = 0;
 
   // Opens the |url| in a new browser tab.
   virtual void OpenUrlFromArc(const GURL& url) = 0;
 
   // Creates a new ShelfDelegate. Shell takes ownership of the returned value.
   virtual ShelfDelegate* CreateShelfDelegate(ShelfModel* model) = 0;
 
   // Creates a system-tray delegate. Shell takes ownership of the delegate.
   virtual SystemTrayDelegate* CreateSystemTrayDelegate() = 0;
@@ skipping 10 matching lines @@
   virtual std::unique_ptr<PaletteDelegate> CreatePaletteDelegate() = 0;
 
   // Creates a menu model for the |wm_shelf| and optional shelf |item|.
   // If |item| is null, this creates a context menu for the wallpaper or shelf.
   virtual ui::MenuModel* CreateContextMenu(WmShelf* wm_shelf,
                                            const ShelfItem* item) = 0;
 
   // Creates a GPU support object. Shell takes ownership of the object.
   virtual GPUSupport* CreateGPUSupport() = 0;
 
-  // Get the product name.
+  // Gets the product name.
   virtual base::string16 GetProductName() const = 0;
 
   virtual void OpenKeyboardShortcutHelpPage() const {}
 
   virtual gfx::Image GetDeprecatedAcceleratorImage() const = 0;
 
   // If |use_local_state| is true, returns the touchscreen status from local
   // state, otherwise from user prefs.
   virtual bool IsTouchscreenEnabledInPrefs(bool use_local_state) const = 0;
 
   // Sets the status of touchscreen to |enabled| in prefs. If |use_local_state|,
   // pref is set in local state, otherwise in user prefs.
   virtual void SetTouchscreenEnabledInPrefs(bool enabled,
                                             bool use_local_state) = 0;
 
   // Updates the enabled/disabled status of the touchscreen from prefs. Enabled
   // if both local state and user prefs are enabled, otherwise disabled.
   virtual void UpdateTouchscreenStatusFromPrefs() = 0;
 
   // Toggles the status of touchpad between enabled and disabled.
   virtual void ToggleTouchpad() {}
+
+  // Gets the WebContents.
+  virtual content::WebContents* GetWebContents() = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SHELL_DELEGATE_H_