Remove implicit conversions from scoped_refptr to T* in mojo/

mojo/examples/pepper_container_app/mojo_ppapi_globals.cc

 // Copyright 2014 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 "mojo/examples/pepper_container_app/mojo_ppapi_globals.h"
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/time/time.h"
 #include "mojo/examples/pepper_container_app/plugin_instance.h"
@@ skipping 137 matching lines @@
   return NULL;
 }
 
 PP_Module MojoPpapiGlobals::GetModuleForInstance(PP_Instance instance) {
   NOTIMPLEMENTED();
   return 0;
 }
 
 ppapi::MessageLoopShared* MojoPpapiGlobals::GetCurrentMessageLoop() {
   if (base::MessageLoopProxy::current().get() == GetMainThreadMessageLoop()) {
-    if (!main_thread_message_loop_resource_) {
+    if (!main_thread_message_loop_resource_.get()) {
       main_thread_message_loop_resource_ = new MainThreadMessageLoopResource(
           GetMainThreadMessageLoop());
     }
     return main_thread_message_loop_resource_.get();
   }
 
   NOTIMPLEMENTED();
   return NULL;
 }
 
 base::TaskRunner* MojoPpapiGlobals::GetFileTaskRunner() {
   NOTIMPLEMENTED();
   return NULL;
 }
 
 std::string MojoPpapiGlobals::GetCmdLine() {
   NOTIMPLEMENTED();
   return std::string();
 }
 
 void MojoPpapiGlobals::PreCacheFontForFlash(const void* logfontw) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace examples
 }  // namespace mojo