Move message handlers that don't belong in RenderProcessHostImpl to their own files.

content/browser/renderer_host/render_process_host_impl.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_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 #pragma once
 
 #include <map>
 #include <queue>
@@ skipping 141 matching lines @@
   friend class VisitRelayingRenderProcessHost;
 
   // Creates and adds the IO thread message filters.
   void CreateMessageFilters();
 
   // Control message handlers.
   void OnShutdownRequest();
   void OnDumpHandlesDone();
   void SuddenTerminationChanged(bool enabled);
   void OnUserMetricsRecordAction(const std::string& action);
-  void OnRevealFolderInOS(const FilePath& path);
   void OnSavedPageAsMHTML(int job_id, int64 mhtml_file_size);
 
   // CompositorSurfaceBuffersSwapped handler when there's no RWH.
   void OnCompositorSurfaceBuffersSwappedNoHost(int32 surface_id,
                                                uint64 surface_handle,
                                                int32 route_id,
                                                int32 gpu_process_host_id);
 
   // Generates a command line to be used to spawn a renderer and appends the
   // results to |*command_line|.
@@ skipping 88 matching lines @@
   // filtering for this at the render widget level.
   bool ignore_input_events_;
 
   // Records the last time we regarded the child process active.
   base::TimeTicks child_process_activity_time_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_