Notify parent frame renderer when OOP child frame renderer crashes

content/renderer/child_frame_compositing_helper.h

 // Copyright 2014 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_CHILD_FRAME_COMPOSITING_HELPER_H_
 #define CONTENT_RENDERER_CHILD_FRAME_COMPOSITING_HELPER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 62 matching lines @@
   void OnBuffersSwapped(const gfx::Size& size,
                         const std::string& mailbox_name,
                         int gpu_route_id,
                         int gpu_host_id,
                         float device_scale_factor);
   void OnCompositorFrameSwapped(scoped_ptr<cc::CompositorFrame> frame,
                                 int route_id,
                                 uint32 output_surface_id,
                                 int host_id);
   void UpdateVisibility(bool);
+  void ChildFrameGone();
 
   // cc::DelegatedFrameProviderClient implementation.
   virtual void UnusedResourcesAreAvailable() OVERRIDE;
   void SetContentsOpaque(bool);
 
  protected:
   // Friend RefCounted so that the dtor can be non-public.
   friend class base::RefCounted<ChildFrameCompositingHelper>;
 
  private:
@@ skipping 68 matching lines @@
 
   scoped_refptr<BrowserPluginManager> browser_plugin_manager_;
   RenderFrameImpl* render_frame_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildFrameCompositingHelper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_CHILD_FRAME_COMPOSITING_HELPER_H_