Make BrowserMessageFilter not derive from IPC::ChannelProxy::MessageFilter. This allows us to hide …

content/public/browser/render_process_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_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_
 
 #include "base/basictypes.h"
 #include "base/id_map.h"
 #include "base/process/kill.h"
 #include "base/process/process_handle.h"
 #include "content/common/content_export.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ipc/ipc_sender.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/surface/transport_dib.h"
 
 class GURL;
 struct ViewMsg_SwapOut_Params;
 
-namespace content {
-class BrowserContext;
-class RenderWidgetHost;
-class StoragePartition;
-}
-
 namespace base {
 class TimeDelta;
 }
 
 namespace content {
+class BrowserContext;
+class BrowserMessageFilter;
+class RenderWidgetHost;
+class StoragePartition;
 
 typedef base::Thread* (*RendererMainThreadFactoryFunction)(
     const std::string& id);
 
 // Interface that represents the browser side of the browser <-> renderer
 // communication channel. There will generally be one RenderProcessHost per
 // renderer process.
 class CONTENT_EXPORT RenderProcessHost : public IPC::Sender,
                                          public IPC::Listener {
  public:
@@ skipping 111 matching lines @@
   // if there is connection or not. Virtual for mocking out for tests.
   virtual bool HasConnection() const = 0;
 
   // Call this to allow queueing of IPC messages that are sent before the
   // process is launched.
   virtual void EnableSendQueue() = 0;
 
   // Returns the renderer channel.
   virtual IPC::ChannelProxy* GetChannel() = 0;
 
+  // Adds a message filter to the IPC channel.
+  virtual void AddFilter(BrowserMessageFilter* filter) = 0;
+
   // Try to shutdown the associated render process as fast as possible
   virtual bool FastShutdownForPageCount(size_t count) = 0;
 
   // TODO(ananta)
   // Revisit whether the virtual functions declared from here on need to be
   // part of the interface.
   virtual void SetIgnoreInputEvents(bool ignore_input_events) = 0;
   virtual bool IgnoreInputEvents() const = 0;
 
   // Schedules the host for deletion and removes it from the all_hosts list.
@@ skipping 79 matching lines @@
   // module.
   static size_t GetMaxRendererProcessCount();
 
   static void RegisterRendererMainThreadFactory(
       RendererMainThreadFactoryFunction create);
 };
 
 }  // namespace content.
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_