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

content/browser/renderer_host/render_process_host_impl.cc

 // 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #if defined(OS_WIN)
@@ skipping 883 matching lines @@
     bool msg_is_ok = true;
     IPC_BEGIN_MESSAGE_MAP_EX(RenderProcessHostImpl, msg, msg_is_ok)
       IPC_MESSAGE_HANDLER(ChildProcessHostMsg_ShutdownRequest,
                           OnShutdownRequest)
       IPC_MESSAGE_HANDLER(ChildProcessHostMsg_DumpHandlesDone,
                           OnDumpHandlesDone)
       IPC_MESSAGE_HANDLER(ViewHostMsg_SuddenTerminationChanged,
                           SuddenTerminationChanged)
       IPC_MESSAGE_HANDLER(ViewHostMsg_UserMetricsRecordAction,
                           OnUserMetricsRecordAction)
-      IPC_MESSAGE_HANDLER(ViewHostMsg_RevealFolderInOS, OnRevealFolderInOS)
       IPC_MESSAGE_HANDLER(ViewHostMsg_SavedPageAsMHTML, OnSavedPageAsMHTML)
+      // Adding single handlers for your service here is fine, but once your
+      // service needs more than one handler, please extract them into a new
+      // message filter and add that filter to CreateMessageFilters().
       IPC_MESSAGE_UNHANDLED_ERROR()
     IPC_END_MESSAGE_MAP_EX()
 
     if (!msg_is_ok) {
       // The message had a handler, but its de-serialization failed.
       // We consider this a capital crime. Kill the renderer if we have one.
       LOG(ERROR) << "bad message " << msg.type() << " terminating renderer.";
       content::RecordAction(UserMetricsAction("BadMessageTerminate_BRPH"));
       ReceivedBadMessage();
     }
@@ skipping 440 matching lines @@
     Send(queued_messages_.front());
     queued_messages_.pop();
   }
 }
 
 void RenderProcessHostImpl::OnUserMetricsRecordAction(
     const std::string& action) {
   content::RecordComputedAction(action);
 }
 
-void RenderProcessHostImpl::OnRevealFolderInOS(const FilePath& path) {
-  // Only honor the request if appropriate persmissions are granted.
-  if (ChildProcessSecurityPolicyImpl::GetInstance()->CanReadFile(GetID(),
-                                                                 path))
-    content::GetContentClient()->browser()->OpenItem(path);
-}
 
 void RenderProcessHostImpl::OnSavedPageAsMHTML(int job_id, int64 data_size) {
   MHTMLGenerationManager::GetInstance()->MHTMLGenerated(job_id, data_size);
 }
 
 void RenderProcessHostImpl::OnCompositorSurfaceBuffersSwappedNoHost(
       int32 surface_id,
       uint64 surface_handle,
       int32 route_id,
       int32 gpu_process_host_id) {
   TRACE_EVENT0("renderer_host",
                "RenderWidgetHostImpl::OnCompositorSurfaceBuffersSwappedNoHost");
   RenderWidgetHostImpl::AcknowledgeSwapBuffers(route_id,
                                                gpu_process_host_id);
 }