Support WebView in ash.

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_
 #pragma once
 
 #include <utility>
 #include <vector>
@@ skipping 10 matching lines @@
 
 class CommandLine;
 class SkBitmap;
 
 namespace aura {
 class EventFilter;
 class Monitor;
 class RootWindow;
 class Window;
 }
+namespace content {
+class BrowserContext;
+}
+
 namespace gfx {
 class Point;
 class Rect;
 }
 namespace ui {
 class Layer;
 }
 namespace views {
 class NonClientFrameView;
 class Widget;
@@ skipping 200 matching lines @@
 
   internal::ResizeShadowController* resize_shadow_controller() {
     return resize_shadow_controller_.get();
   }
 
   // Made available for tests.
   internal::ShadowController* shadow_controller() {
     return shadow_controller_.get();
   }
 
+  content::BrowserContext* browser_context() { return browser_context_; }
+  void set_browser_context(content::BrowserContext* browser_context) {
+    browser_context_ = browser_context;
+  }
+
  private:
   FRIEND_TEST_ALL_PREFIXES(RootWindowEventFilterTest, MouseEventCursors);
   FRIEND_TEST_ALL_PREFIXES(RootWindowEventFilterTest, TransformActivate);
 
   typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
 
   explicit Shell(ShellDelegate* delegate);
   virtual ~Shell();
 
   void Init();
@@ skipping 77 matching lines @@
   // Owned by aura::RootWindow, cached here for type safety.
   internal::RootWindowLayoutManager* root_window_layout_;
 
   // Status area with clock, Wi-Fi signal, etc.
   views::Widget* status_widget_;
 
   // System tray with clock, Wi-Fi signal, etc. (a replacement in progress for
   // |status_widget_|).
   scoped_ptr<SystemTray> tray_;
 
+  // Used by ash/shell.
+  content::BrowserContext* browser_context_;
+
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_