Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ui/base/ui_base_types.h

Index: ui/base/ui_base_types.h
diff --git a/ui/base/ui_base_types.h b/ui/base/ui_base_types.h
index 2f1bcec9eaed0d4ad9d7cdc2ad187538483f6c11..ccb74a858eadee73ca66d31f8b5b8b15d88995cf 100644
--- a/ui/base/ui_base_types.h
+++ b/ui/base/ui_base_types.h
@@ -37,6 +37,14 @@ enum ModalType {
   MODAL_TYPE_SYSTEM = 3   // Window is modal to all other windows.
 };
 
+enum MenuSourceType {
+  MENU_SOURCE_NONE            = 0,
+  MENU_SOURCE_MOUSE           = 1,
+  MENU_SOURCE_KEYBOARD        = 2,
+  MENU_SOURCE_TOUCH           = 3,
+  MENU_SOURCE_TOUCH_EDIT_MENU = 4,
+};
+
 }  // namespace ui
 
 #endif  // UI_BASE_UI_BASE_TYPES_H_