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

content/renderer/pepper/pepper_proxy_channel_delegate_impl.cc

Index: content/renderer/pepper/pepper_proxy_channel_delegate_impl.cc
diff --git a/content/renderer/pepper/pepper_proxy_channel_delegate_impl.cc b/content/renderer/pepper/pepper_proxy_channel_delegate_impl.cc
index f48e732eb84e7f30ae53e8b3215c1bc943da6fa3..3cada305cd0f276a65237e7cc0df50a8d64c1820 100644
--- a/content/renderer/pepper/pepper_proxy_channel_delegate_impl.cc
+++ b/content/renderer/pepper/pepper_proxy_channel_delegate_impl.cc
@@ -11,10 +11,11 @@ namespace content {
 
 PepperProxyChannelDelegateImpl::~PepperProxyChannelDelegateImpl() {}
 
-base::MessageLoopProxy* PepperProxyChannelDelegateImpl::GetIPCMessageLoop() {
+base::SingleThreadTaskRunner*
+PepperProxyChannelDelegateImpl::GetIPCTaskRunner() {
   // This is called only in the renderer so we know we have a child process.
   DCHECK(ChildProcess::current()) << "Must be in the renderer.";
-  return ChildProcess::current()->io_message_loop_proxy();
+  return ChildProcess::current()->io_task_runner();
 }
 
 base::WaitableEvent* PepperProxyChannelDelegateImpl::GetShutdownEvent() {