Make WebContentsImpl aware of all of its RWHs.

content/browser/renderer_host/render_widget_host_delegate.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_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 21 matching lines @@
 class RenderWidgetHostInputEventRouter;
 struct NativeWebKeyboardEvent;
 
 //
 // RenderWidgetHostDelegate
 //
 //  An interface implemented by an object interested in knowing about the state
 //  of the RenderWidgetHost.
 class CONTENT_EXPORT RenderWidgetHostDelegate {
  public:
+  // The RenderWidgetHost has just been created.
+  virtual void RenderWidgetCreated(RenderWidgetHostImpl* render_widget_host) {}
+
   // The RenderWidgetHost is going to be deleted.
   virtual void RenderWidgetDeleted(RenderWidgetHostImpl* render_widget_host) {}
 
   // The RenderWidgetHost got the focus.
   virtual void RenderWidgetGotFocus(RenderWidgetHostImpl* render_widget_host) {}
 
   // The RenderWidget was resized.
   virtual void RenderWidgetWasResized(RenderWidgetHostImpl* render_widget_host,
                                       bool width_changed) {}
 
@@ skipping 124 matching lines @@
   virtual void ForwardCompositorProto(RenderWidgetHostImpl* render_widget_host,
                                       const std::vector<uint8_t>& proto) {}
 
  protected:
   virtual ~RenderWidgetHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_