Mojoify PoweMonitorMessageBroadcaster IPC from browser to child process

content/public/browser/browser_child_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_BROWSER_CHILD_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_HOST_H_
 
 #include "base/environment.h"
 #include "base/memory/shared_memory.h"
 #include "base/process/kill.h"
@@ skipping 86 matching lines @@
   // the Launch method is used to start the process. However if the owner
   // of this object doesn't call Launch and starts the process in another way,
   // they need to call this method so that the process handle is associated with
   // this object.
   virtual void SetHandle(base::ProcessHandle handle) = 0;
 
 #if defined(OS_MACOSX)
   // Returns a PortProvider used to get the task port for child processes.
   static base::PortProvider* GetPortProvider();
 #endif
+
+  class ConnectionFilterImpl;
 };
 
 };  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_HOST_H_