Add machinery to show touch editing context menus in OOPIFs.

content/renderer/render_widget.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 487 matching lines @@
   void OnCreatingNewAck();
   virtual void OnResize(const ResizeParams& params);
   void OnEnableDeviceEmulation(const blink::WebDeviceEmulationParams& params);
   void OnDisableDeviceEmulation();
   virtual void OnWasHidden();
   virtual void OnWasShown(bool needs_repainting,
                           const ui::LatencyInfo& latency_info);
   void OnCreateVideoAck(int32_t video_id);
   void OnUpdateVideoAck(int32_t video_id);
   void OnRequestMoveAck();
+  // Request from browser to show context menu.
+  virtual void OnShowContextMenu(ui::MenuSourceType source_type,
+                                 const gfx::Point& location);
   virtual void OnImeSetComposition(
       const base::string16& text,
       const std::vector<blink::WebCompositionUnderline>& underlines,
       const gfx::Range& replacement_range,
       int selection_start,
       int selection_end);
   virtual void OnImeCommitText(
       const base::string16& text,
       const std::vector<blink::WebCompositionUnderline>& underlines,
       const gfx::Range& replacement_range,
@@ skipping 367 matching lines @@
   scoped_refptr<MainThreadEventQueue> input_event_queue_;
 
   base::WeakPtrFactory<RenderWidget> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_