Return the WebViewFrameWidget in RenderWidget::webwidget() if there

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 137 matching lines @@
 
   // Closes a RenderWidget that was created by |CreateForFrame|.
   // TODO(avi): De-virtualize this once RenderViewImpl has-a RenderWidget.
   // https://crbug.com/545684
   virtual void CloseForFrame();
 
   int32_t routing_id() const { return routing_id_; }
   void SetRoutingID(int32_t routing_id);
 
   CompositorDependencies* compositor_deps() const { return compositor_deps_; }
-  blink::WebWidget* webwidget() const { return webwidget_; }
+  virtual blink::WebWidget* GetWebWidget() const;
   const gfx::Size& size() const { return size_; }
   bool is_fullscreen_granted() const { return is_fullscreen_granted_; }
   blink::WebDisplayMode display_mode() const { return display_mode_; }
   bool is_hidden() const { return is_hidden_; }
   // Temporary for debugging purposes...
   bool closing() const { return closing_; }
   bool is_swapped_out() { return is_swapped_out_; }
   bool has_host_context_menu_location() {
     return has_host_context_menu_location_;
   }
@@ skipping 444 matching lines @@
   void OnWaitNextFrameForTests(int routing_id);
 
   // Routing ID that allows us to communicate to the parent browser process
   // RenderWidgetHost. When MSG_ROUTING_NONE, no messages may be sent.
   int32_t routing_id_;
 
   // Dependencies for initializing a compositor, including flags for optional
   // features.
   CompositorDependencies* const compositor_deps_;
 
+  // Use GetWebWidget() instead of using webwidget_internal_ directly.
   // We are responsible for destroying this object via its Close method.
   // May be NULL when the window is closing.
-  blink::WebWidget* webwidget_;
+  blink::WebWidget* webwidget_internal_;
 
   // The delegate of the owner of this object.
   RenderWidgetOwnerDelegate* owner_delegate_;
 
   // This is lazily constructed and must not outlive webwidget_.
   std::unique_ptr<RenderWidgetCompositor> compositor_;
 
   // Set to the ID of the view that initiated creating this view, if any. When
   // the view was initiated by the browser (the common case), this will be
   // MSG_ROUTING_NONE. This is used in determining ownership when opening
@@ skipping 183 matching lines @@
   // Stores edit commands associated to the next key event.
   // Will be cleared as soon as the next key event is processed.
   EditCommands edit_commands_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_