Remove implicit conversions from scoped_refptr to T* in ppapi/

ppapi/proxy/message_handler.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 "ppapi/proxy/message_handler.h"
 
 #include "ipc/ipc_message.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/ppb_message_loop_proxy.h"
@@ skipping 67 matching lines @@
 
   result.reset(new MessageHandler(
       instance, handler_if, user_data, message_loop_resource));
   *error = PP_OK;
   return result.Pass();
 }
 
 MessageHandler::~MessageHandler() {
   // It's possible the message_loop_proxy is NULL if that loop has been quit.
   // In that case, we unfortunately just can't call Destroy.
-  if (message_loop_->message_loop_proxy()) {
+  if (message_loop_->message_loop_proxy().get()) {
     // The posted task won't have the proxy lock, but that's OK, it doesn't
     // touch any internal state; it's a direct call on the plugin's function.
     message_loop_->message_loop_proxy()->PostTask(FROM_HERE,
         base::Bind(handler_if_->Destroy,
                    instance_,
                    user_data_));
   }
 }
 
 bool MessageHandler::LoopIsValid() const {
-  return !!message_loop_->message_loop_proxy();
+  return !!message_loop_->message_loop_proxy().get();
 }
 
 void MessageHandler::HandleMessage(ScopedPPVar var) {
   message_loop_->message_loop_proxy()->PostTask(FROM_HERE,
       RunWhileLocked(base::Bind(&HandleMessageWrapper,
                                 handler_if_->HandleMessage,
                                 instance_,
                                 user_data_,
                                 var)));
 }
@@ skipping 15 matching lines @@
     void* user_data,
     scoped_refptr<MessageLoopResource> message_loop)
     : instance_(instance),
       handler_if_(handler_if),
       user_data_(user_data),
       message_loop_(message_loop) {
 }
 
 }  // namespace proxy
 }  // namespace ppapi