Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ui/views/controls/button/button_dropdown.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 UI_VIEWS_CONTROLS_BUTTON_BUTTON_DROPDOWN_H_
 #define UI_VIEWS_CONTROLS_BUTTON_BUTTON_DROPDOWN_H_
 
 #include "base/memory/weak_ptr.h"
 #include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/button/image_button.h"
@@ skipping 35 matching lines @@
   virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE;
   virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
   // Showing the drop down results in a MouseCaptureLost, we need to ignore it.
   virtual void OnMouseCaptureLost() OVERRIDE {}
   virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE;
   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
 
   // Overridden from views::ContextMenuController
-  virtual void ShowContextMenuForView(View* source,
-                                      const gfx::Point& point) OVERRIDE;
+  virtual void ShowContextMenuForView(
+      View* source,
+      const gfx::Point& point,
+      ui::ContextMenuSourceType source_type) OVERRIDE;
 
  protected:
   // Overridden from CustomButton. Returns true if the button should become
   // pressed when a user holds the mouse down over the button. For this
   // implementation, both left and right mouse buttons can trigger a change
   // to the PUSHED state.
   virtual bool ShouldEnterPushedState(const ui::Event& event) OVERRIDE;
 
   // Returns if menu should be shown. Override this to change default behavior.
   virtual bool ShouldShowMenu();
@@ skipping 16 matching lines @@
 
   // A factory for tasks that show the dropdown context menu for the button.
   base::WeakPtrFactory<ButtonDropDown> show_menu_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ButtonDropDown);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_BUTTON_DROPDOWN_H_