Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ui/views/context_menu_controller.h

Index: ui/views/context_menu_controller.h
diff --git a/ui/views/context_menu_controller.h b/ui/views/context_menu_controller.h
index 23ebd2730d0bd4a07aa9d548377a162f3f8070eb..87eec37e18316b136b0f2b6d07f0069e9909d747 100644
--- a/ui/views/context_menu_controller.h
+++ b/ui/views/context_menu_controller.h
@@ -5,6 +5,7 @@
 #ifndef UI_VIEWS_CONTEXT_MENU_CONTROLLER_H_
 #define UI_VIEWS_CONTEXT_MENU_CONTROLLER_H_
 
+#include "ui/base/ui_base_types.h"
 #include "ui/views/views_export.h"
 
 namespace gfx {
@@ -29,8 +30,10 @@ class VIEWS_EXPORT ContextMenuController {
  public:
   // Invoked to show the context menu for |source|.
   // |point| is in screen coordinates.
-  virtual void ShowContextMenuForView(View* source,
-                                      const gfx::Point& point) = 0;
+  virtual void ShowContextMenuForView(
+      View* source,
+      const gfx::Point& point,
+      ui::ContextMenuSourceType source_type) = 0;
 
  protected:
   virtual ~ContextMenuController() {}