Remove all remaining traces of MessageLoopProxy.

content/browser/gpu/browser_gpu_channel_host_factory.cc

Index: content/browser/gpu/browser_gpu_channel_host_factory.cc
diff --git a/content/browser/gpu/browser_gpu_channel_host_factory.cc b/content/browser/gpu/browser_gpu_channel_host_factory.cc
index aff2083e6deff4b7e3fe02f0b11d17a907cee9c5..e5463687eae1d3a34f24d64ee2a6b5f24805dbfb 100644
--- a/content/browser/gpu/browser_gpu_channel_host_factory.cc
+++ b/content/browser/gpu/browser_gpu_channel_host_factory.cc
@@ -81,7 +81,7 @@ BrowserGpuChannelHostFactory::EstablishRequest::Create(
   scoped_refptr<EstablishRequest> establish_request = new EstablishRequest(
       cause, gpu_client_id, gpu_client_tracing_id, gpu_host_id);
   scoped_refptr<base::SingleThreadTaskRunner> task_runner =
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
+      BrowserThread::GetTaskRunnerForThread(BrowserThread::IO);
   // PostTask outside the constructor to ensure at least one reference exists.
   task_runner->PostTask(
       FROM_HERE,
@@ -267,7 +267,7 @@ bool BrowserGpuChannelHostFactory::IsMainThread() {
 
 scoped_refptr<base::SingleThreadTaskRunner>
 BrowserGpuChannelHostFactory::GetIOThreadTaskRunner() {
-  return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
+  return BrowserThread::GetTaskRunnerForThread(BrowserThread::IO);
 }
 
 std::unique_ptr<base::SharedMemory>