Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ash/shell/window_type_launcher.h

Index: ash/shell/window_type_launcher.h
diff --git a/ash/shell/window_type_launcher.h b/ash/shell/window_type_launcher.h
index de2159ebc44b1de744338879bc15ae072c94bf89..0793b2fe83a5a7b513561ac5fcfb829e9dbe7130 100644
--- a/ash/shell/window_type_launcher.h
+++ b/ash/shell/window_type_launcher.h
@@ -60,8 +60,10 @@ class WindowTypeLauncher : public views::WidgetDelegateView,
   virtual void ExecuteCommand(int id, int event_flags) OVERRIDE;
 
   // Override from views::ContextMenuController:
-  virtual void ShowContextMenuForView(views::View* source,
-                                      const gfx::Point& point) OVERRIDE;
+  virtual void ShowContextMenuForView(
+      views::View* source,
+      const gfx::Point& point,
+      ui::ContextMenuSourceType source_type) OVERRIDE;
 #endif  // !defined(OS_MACOSX)
 
   views::LabelButton* create_button_;