content/child: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

content/ppapi_plugin/ppapi_thread.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.
 
 #include "content/ppapi_plugin/ppapi_thread.h"
 
 #include <limits>
 
 #include "base/command_line.h"
 #include "base/cpu.h"
@@ skipping 157 matching lines @@
 }
 
 void PpapiThread::OnChannelConnected(int32 peer_pid) {
   ChildThreadImpl::OnChannelConnected(peer_pid);
 #if defined(OS_WIN)
   if (is_broker_)
     peer_handle_.Set(::OpenProcess(PROCESS_DUP_HANDLE, FALSE, peer_pid));
 #endif
 }
 
-base::MessageLoopProxy* PpapiThread::GetIPCMessageLoop() {
-  return ChildProcess::current()->io_message_loop_proxy();
+base::SingleThreadTaskRunner* PpapiThread::GetIPCTaskRunner() {
+  return ChildProcess::current()->io_task_runner();
 }
 
 base::WaitableEvent* PpapiThread::GetShutdownEvent() {
   return ChildProcess::current()->GetShutDownEvent();
 }
 
 IPC::PlatformFileForTransit PpapiThread::ShareHandleWithRemote(
     base::PlatformFile handle,
     base::ProcessId peer_pid,
     bool should_close_source) {
@@ skipping 367 matching lines @@
       std::string("Plugin.Ppapi") + (is_broker_ ? "Broker" : "Plugin") +
       "LoadErrorCode_" + path.BaseName().MaybeAsASCII();
 
   // For sparse histograms, we can use the macro, as it does not incorporate a
   // static.
   UMA_HISTOGRAM_SPARSE_SLOWLY(histogram_name, error.code);
 #endif
 }
 
 }  // namespace content