Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ui/views/controls/textfield/native_textfield_views.h

Index: ui/views/controls/textfield/native_textfield_views.h
diff --git a/ui/views/controls/textfield/native_textfield_views.h b/ui/views/controls/textfield/native_textfield_views.h
index 23cd6f2bff33637334a564c9c5e9d74732ac2856..d7df5bd94a9909b730af53ad86e6d495c027bbf5 100644
--- a/ui/views/controls/textfield/native_textfield_views.h
+++ b/ui/views/controls/textfield/native_textfield_views.h
@@ -92,8 +92,10 @@ class VIEWS_EXPORT NativeTextfieldViews : public View,
   virtual void OpenContextMenu(const gfx::Point anchor) OVERRIDE;
 
   // ContextMenuController overrides:
-  virtual void ShowContextMenuForView(View* source,
-                                      const gfx::Point& point) OVERRIDE;
+  virtual void ShowContextMenuForView(
+      View* source,
+      const gfx::Point& point,
+      ui::ContextMenuSourceType source_type) OVERRIDE;
 
   // Overridden from DragController:
   virtual void WriteDragDataForView(View* sender,