Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ash/root_window_controller.h

Index: ash/root_window_controller.h
diff --git a/ash/root_window_controller.h b/ash/root_window_controller.h
index f8855a7fdc105332b4c6ac5df6be187fd60f6e13..6487a0d13206b107891cc16f4f25794258649444 100644
--- a/ash/root_window_controller.h
+++ b/ash/root_window_controller.h
@@ -10,6 +10,7 @@
 #include "ash/system/user/login_status.h"
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
+#include "ui/base/ui_base_types.h"
 
 class SkBitmap;
 
@@ -107,7 +108,8 @@ class ASH_EXPORT RootWindowController {
 
   // Shows context menu at the |location_in_screen|. This uses
   // |ShellDelegate::CreateContextMenu| to define the content of the menu.
-  void ShowContextMenu(const gfx::Point& location_in_screen);
+  void ShowContextMenu(const gfx::Point& location_in_screen,
+                       ui::MenuSourceType source_type);
 
   // Returns the layout-manager for the appropriate modal-container. If the
   // window is inside the lockscreen modal container, then the layout manager