[chrome/renderer/media] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

chrome/renderer/media/cast_session.cc

Index: chrome/renderer/media/cast_session.cc
diff --git a/chrome/renderer/media/cast_session.cc b/chrome/renderer/media/cast_session.cc
index 0983a2b083946f3de9f8d6e011f01a531c012476..326f8273f92ebe3baccc1fe80eb3a0ed99b28174 100644
--- a/chrome/renderer/media/cast_session.cc
+++ b/chrome/renderer/media/cast_session.cc
@@ -4,7 +4,7 @@
 
 #include "chrome/renderer/media/cast_session.h"
 
-#include "base/message_loop/message_loop_proxy.h"
+#include "base/single_thread_task_runner.h"
 #include "chrome/renderer/media/cast_session_delegate.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/video_encode_accelerator.h"
@@ -42,12 +42,12 @@ void CreateVideoEncodeMemory(
 
 CastSession::CastSession()
     : delegate_(new CastSessionDelegate()),
-      io_message_loop_proxy_(
+      io_task_runner_(
           content::RenderThread::Get()->GetIOMessageLoopProxy()) {}
 
 CastSession::~CastSession() {
   // We should always be able to delete the object on the IO thread.
-  CHECK(io_message_loop_proxy_->DeleteSoon(FROM_HERE, delegate_.release()));
+  CHECK(io_task_runner_->DeleteSoon(FROM_HERE, delegate_.release()));
 }
 
 void CastSession::StartAudio(const media::cast::AudioSenderConfig& config,
@@ -56,7 +56,7 @@ void CastSession::StartAudio(const media::cast::AudioSenderConfig& config,
   DCHECK(content::RenderThread::Get()
              ->GetTaskRunner()->BelongsToCurrentThread());
 
-  io_message_loop_proxy_->PostTask(
+  io_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&CastSessionDelegate::StartAudio,
                  base::Unretained(delegate_.get()),
@@ -71,7 +71,7 @@ void CastSession::StartVideo(const media::cast::VideoSenderConfig& config,
   DCHECK(content::RenderThread::Get()
              ->GetTaskRunner()->BelongsToCurrentThread());
 
-  io_message_loop_proxy_->PostTask(
+  io_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&CastSessionDelegate::StartVideo,
                  base::Unretained(delegate_.get()),
@@ -87,7 +87,7 @@ void CastSession::StartVideo(const media::cast::VideoSenderConfig& config,
 void CastSession::StartUDP(const net::IPEndPoint& remote_endpoint,
                            scoped_ptr<base::DictionaryValue> options,
                            const ErrorCallback& error_callback) {
-  io_message_loop_proxy_->PostTask(
+  io_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(
           &CastSessionDelegate::StartUDP,
@@ -99,7 +99,7 @@ void CastSession::StartUDP(const net::IPEndPoint& remote_endpoint,
 }
 
 void CastSession::ToggleLogging(bool is_audio, bool enable) {
-  io_message_loop_proxy_->PostTask(
+  io_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&CastSessionDelegate::ToggleLogging,
                  base::Unretained(delegate_.get()),
@@ -110,7 +110,7 @@ void CastSession::ToggleLogging(bool is_audio, bool enable) {
 void CastSession::GetEventLogsAndReset(
     bool is_audio, const std::string& extra_data,
     const EventLogsCallback& callback) {
-  io_message_loop_proxy_->PostTask(
+  io_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&CastSessionDelegate::GetEventLogsAndReset,
                  base::Unretained(delegate_.get()),
@@ -121,7 +121,7 @@ void CastSession::GetEventLogsAndReset(
 
 void CastSession::GetStatsAndReset(bool is_audio,
                                    const StatsCallback& callback) {
-  io_message_loop_proxy_->PostTask(
+  io_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&CastSessionDelegate::GetStatsAndReset,
                  base::Unretained(delegate_.get()),