Refactor RenderProcessHost to use IPC::Listener instead of RenderWidgetHost

content/public/browser/render_widget_host.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_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_
 
 #include "base/callback.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/keyboard_listener.h"
@@ skipping 17 matching lines @@
 class Rect;
 }
 
 namespace WebKit {
 struct WebScreenInfo;
 }
 
 namespace content {
 
 class RenderProcessHost;
+class RenderWidgetHost;
 class RenderWidgetHostImpl;
 class RenderWidgetHostView;
 
+typedef std::vector<RenderWidgetHost*> RenderWidgetHostList;

[dcheng, 2013/06/11 00:34:58]

I think this typedef is unused.

+
 // A RenderWidgetHost manages the browser side of a browser<->renderer
 // HWND connection.  The HWND lives in the browser process, and
 // windows events are sent over IPC to the corresponding object in the
 // renderer.  The renderer paints into shared memory, which we
 // transfer to a backing store and blit to the screen when Windows
 // sends us a WM_PAINT message.
 //
 // How Shutdown Works
 //
 // There are two situations in which this object, a RenderWidgetHost, can be
@@ skipping 59 matching lines @@
   static void RemoveAllBackingStores();
 
   // Returns the size of all the backing stores used for rendering
   static size_t BackingStoreMemorySize();
 
   // Adds/removes a callback called on creation of each new RenderWidgetHost.
   typedef base::Callback<void(RenderWidgetHost*)> CreatedCallback;
   static void AddCreatedCallback(const CreatedCallback& callback);
   static void RemoveCreatedCallback(const CreatedCallback& callback);
 
+  // Returns the RenderWidgetHost given its ID and the ID of its render process.
+  // Returns NULL if the IDs do not correspond to a live RenderWidgetHost.
+  static RenderWidgetHost* FromID(int32 process_id, int32 routing_id);
+
+  typedef std::vector<RenderWidgetHost*> List;
+  static scoped_ptr<RenderWidgetHost::List> GetRenderWidgetHosts();
+
   virtual ~RenderWidgetHost() {}
 
   // Edit operations.
   virtual void Undo() = 0;
   virtual void Redo() = 0;
   virtual void Cut() = 0;
   virtual void Copy() = 0;
   virtual void CopyToFindPboard() = 0;
   virtual void Paste() = 0;
   virtual void PasteAndMatchStyle() = 0;
@@ skipping 176 matching lines @@
   // within content/.  This method is necessary because
   // RenderWidgetHost is the root of a diamond inheritance pattern, so
   // subclasses inherit it virtually, which removes our ability to
   // static_cast to the subclass.
   virtual RenderWidgetHostImpl* AsRenderWidgetHostImpl() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_