MessageLoopProxy cleanups in remoting client.

remoting/client/plugin/pepper_view.cc

Index: remoting/client/plugin/pepper_view.cc
diff --git a/remoting/client/plugin/pepper_view.cc b/remoting/client/plugin/pepper_view.cc
index 6b67eacf77cf674332e270353e812ee77e032fbb..d7d1bf1548ee34e313d813abbd760605c298cf22 100644
--- a/remoting/client/plugin/pepper_view.cc
+++ b/remoting/client/plugin/pepper_view.cc
@@ -95,7 +95,7 @@ bool PepperView::Initialize() {
 }
 
 void PepperView::TearDown() {
-  DCHECK(context_->main_message_loop()->BelongsToCurrentThread());
+  DCHECK(context_->main_task_runner()->BelongsToCurrentThread());
   DCHECK(is_initialized_);
 
   is_initialized_ = false;
@@ -116,7 +116,7 @@ void PepperView::TearDown() {
 
 void PepperView::SetConnectionState(protocol::ConnectionToHost::State state,
                                     protocol::ErrorCode error) {
-  DCHECK(context_->main_message_loop()->BelongsToCurrentThread());
+  DCHECK(context_->main_task_runner()->BelongsToCurrentThread());
 
   switch (state) {
     case protocol::ConnectionToHost::CONNECTING:
@@ -183,7 +183,7 @@ void PepperView::ApplyBuffer(const SkISize& view_size,
                              const SkIRect& clip_area,
                              pp::ImageData* buffer,
                              const SkRegion& region) {
-  DCHECK(context_->main_message_loop()->BelongsToCurrentThread());
+  DCHECK(context_->main_task_runner()->BelongsToCurrentThread());
 
   // Currently we cannot use the data in the buffer is scale factor has changed
   // already.
@@ -199,7 +199,7 @@ void PepperView::ApplyBuffer(const SkISize& view_size,
 }
 
 void PepperView::ReturnBuffer(pp::ImageData* buffer) {
-  DCHECK(context_->main_message_loop()->BelongsToCurrentThread());
+  DCHECK(context_->main_task_runner()->BelongsToCurrentThread());
 
   // Free the buffer if there is nothing to paint.
   if (!is_initialized_) {
@@ -219,7 +219,7 @@ void PepperView::ReturnBuffer(pp::ImageData* buffer) {
 }
 
 void PepperView::SetSourceSize(const SkISize& source_size) {
-  DCHECK(context_->main_message_loop()->BelongsToCurrentThread());
+  DCHECK(context_->main_task_runner()->BelongsToCurrentThread());
 
   if (source_size_ == source_size)
     return;
@@ -328,7 +328,7 @@ void PepperView::FlushBuffer(const SkIRect& clip_area,
 void PepperView::OnFlushDone(base::Time paint_start,
                              pp::ImageData* buffer,
                              int result) {
-  DCHECK(context_->main_message_loop()->BelongsToCurrentThread());
+  DCHECK(context_->main_task_runner()->BelongsToCurrentThread());
   DCHECK(flush_pending_);
 
   instance_->GetStats()->video_paint_ms()->Record(