Use a direct include of the message_loop header in remoting/.

remoting/client/plugin/pepper_entrypoints.cc

 // Copyright (c) 2011 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.
 
 #include "remoting/client/plugin/pepper_entrypoints.h"
 
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/ppb_instance.h"
 #include "ppapi/cpp/instance.h"
 #include "ppapi/cpp/module.h"
 #include "remoting/client/plugin/chromoting_instance.h"
 
 static pp::Module* g_module_singleton = NULL;
 
@@ skipping 44 matching lines @@
   return pp::Module::Get()->GetPluginInterface(interface_name);
 }
 
 const void* PPP_GetBrowserInterface(const char* interface_name) {
   if (!pp::Module::Get())
     return NULL;
   return pp::Module::Get()->GetBrowserInterface(interface_name);
 }
 
 }  // namespace remoting