ppapi: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

ppapi/proxy/resource_reply_thread_registrar.cc

 // Copyright 2013 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/resource_reply_thread_registrar.h"
 
 #include "base/logging.h"
-#include "base/message_loop/message_loop_proxy.h"
+#include "base/single_thread_task_runner.h"
 #include "ipc/ipc_message.h"
 #include "ppapi/proxy/resource_message_params.h"
 #include "ppapi/shared_impl/proxy_lock.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 
 namespace ppapi {
 namespace proxy {
 
 ResourceReplyThreadRegistrar::ResourceReplyThreadRegistrar(
-    scoped_refptr<base::MessageLoopProxy> main_thread)
+    scoped_refptr<base::SingleThreadTaskRunner> main_thread)
     : main_thread_(main_thread) {
 }
 
 ResourceReplyThreadRegistrar::~ResourceReplyThreadRegistrar() {
 }
 
 void ResourceReplyThreadRegistrar::Register(
     PP_Resource resource,
     int32_t sequence_number,
     scoped_refptr<TrackedCallback> reply_thread_hint) {
   ProxyLock::AssertAcquiredDebugOnly();
 
   // Use the main thread if |reply_thread_hint| is NULL or blocking.
   if (!reply_thread_hint.get() || reply_thread_hint->is_blocking())
     return;
 
   DCHECK(reply_thread_hint->target_loop());
-  scoped_refptr<base::MessageLoopProxy> reply_thread(
-      reply_thread_hint->target_loop()->GetMessageLoopProxy());
+  scoped_refptr<base::SingleThreadTaskRunner> reply_thread(
+      reply_thread_hint->target_loop()->GetTaskRunner());
   {
     base::AutoLock auto_lock(lock_);
 
     if (reply_thread.get() == main_thread_.get())
       return;
 
     map_[resource][sequence_number] = reply_thread;
   }
 }
 
 void ResourceReplyThreadRegistrar::Unregister(PP_Resource resource) {
   base::AutoLock auto_lock(lock_);
   map_.erase(resource);
 }
 
-scoped_refptr<base::MessageLoopProxy>
+scoped_refptr<base::SingleThreadTaskRunner>
 ResourceReplyThreadRegistrar::GetTargetThread(
     const ResourceMessageReplyParams& reply_params,
     const IPC::Message& nested_msg) {
   base::AutoLock auto_lock(lock_);
   ResourceMap::iterator resource_iter = map_.find(reply_params.pp_resource());
   if (resource_iter != map_.end()) {
     SequenceThreadMap::iterator sequence_thread_iter =
         resource_iter->second.find(reply_params.sequence());
     if (sequence_thread_iter != resource_iter->second.end()) {
-      scoped_refptr<base::MessageLoopProxy> target =
+      scoped_refptr<base::SingleThreadTaskRunner> target =
           sequence_thread_iter->second;
       resource_iter->second.erase(sequence_thread_iter);
       return target;
     }
   }
 
   return main_thread_;
 }
 
 }  // namespace proxy
 }  // namespace ppapi