Refactors building the system menu model into a common place

chrome/browser/ui/views/frame/browser_frame.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_VIEWS_FRAME_BROWSER_FRAME_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_FRAME_H_
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/views/frame/browser_non_client_frame_view.h"
+#include "ui/views/context_menu_controller.h"
 #include "ui/views/widget/widget.h"
 
 class AvatarMenuButton;
 class BrowserRootView;
 class BrowserView;
 class NativeBrowserFrame;
 class NonClientFrameView;
+class SystemMenuModelBuilder;
 
 namespace gfx {
 class Font;
 class Rect;
 }
 
 namespace ui {
+class MenuModel;
 class ThemeProvider;
 }
 
 namespace views {
+class MenuRunner;
 class View;
 }
 
 // This is a virtual interface that allows system specific browser frames.
-class BrowserFrame : public views::Widget {
+class BrowserFrame
+    : public views::Widget,
+      public views::ContextMenuController {
  public:
   explicit BrowserFrame(BrowserView* browser_view);
   virtual ~BrowserFrame();
 
   static const gfx::Font& GetTitleFont();
 
   // Initialize the frame (creates the underlying native window).
   void InitBrowserFrame();
 
   // Determine the distance of the left edge of the minimize button from the
@@ skipping 24 matching lines @@
   void TabStripDisplayModeChanged();
 
   // Overridden from views::Widget:
   virtual views::internal::RootView* CreateRootView() OVERRIDE;
   virtual views::NonClientFrameView* CreateNonClientFrameView() OVERRIDE;
   virtual bool GetAccelerator(int command_id,
                               ui::Accelerator* accelerator) OVERRIDE;
   virtual ui::ThemeProvider* GetThemeProvider() const OVERRIDE;
   virtual void OnNativeWidgetActivationChanged(bool active) OVERRIDE;
 
+  // Overridden from views::ContextMenuController:
+  virtual void ShowContextMenuForView(views::View* source,
+                                      const gfx::Point& p) OVERRIDE;
+
   // Returns true if we should leave any offset at the frame caption. Typically
   // when the frame is maximized/full screen we want to leave no offset at the
   // top.
   bool ShouldLeaveOffsetNearTopBorder();
 
   AvatarMenuButton* GetAvatarMenuButton();
 
+  // Returns the menu model. BrowserFrame owns the returned model.
+  ui::MenuModel* GetSystemMenuModel();
+
  private:
   NativeBrowserFrame* native_browser_frame_;
 
   // A weak reference to the root view associated with the window. We save a
   // copy as a BrowserRootView to avoid evil casting later, when we need to call
   // functions that only exist on BrowserRootView (versus RootView).
   BrowserRootView* root_view_;
 
   // A pointer to our NonClientFrameView as a BrowserNonClientFrameView.
   BrowserNonClientFrameView* browser_frame_view_;
 
   // The BrowserView is our ClientView. This is a pointer to it.
   BrowserView* browser_view_;
 
+  scoped_ptr<SystemMenuModelBuilder> menu_model_builder_;
+
+  // Used to show the system menu. Only used if
+  // NativeBrowserFrame::UsesNativeSystemMenu() returns false.
+  scoped_ptr<views::MenuRunner> menu_runner_;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserFrame);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_FRAME_H_