cc: Use correct message loop proxy in BlockingTaskRunner

cc/layers/delegated_frame_resource_collection.cc

Index: cc/layers/delegated_frame_resource_collection.cc
diff --git a/cc/layers/delegated_frame_resource_collection.cc b/cc/layers/delegated_frame_resource_collection.cc
index 5ca4eda57d761bed7998ae75964a136c979ddae9..b0e4cbf72964f6993251828a8ffd95a7900a7c30 100644
--- a/cc/layers/delegated_frame_resource_collection.cc
+++ b/cc/layers/delegated_frame_resource_collection.cc
@@ -11,7 +11,6 @@ namespace cc {
 
 DelegatedFrameResourceCollection::DelegatedFrameResourceCollection()
     : client_(NULL),
-      main_thread_runner_(BlockingTaskRunner::current()),
       lost_all_resources_(false),
       weak_ptr_factory_(this) {
   DCHECK(main_thread_checker_.CalledOnValidThread());
@@ -115,9 +114,9 @@ void DelegatedFrameResourceCollection::RefResources(
 
 static void UnrefResourcesOnImplThread(
     base::WeakPtr<DelegatedFrameResourceCollection> self,
-    scoped_refptr<BlockingTaskRunner> main_thread_runner,
-    const ReturnedResourceArray& returned) {
-  main_thread_runner->PostTask(
+    const ReturnedResourceArray& returned,
+    BlockingTaskRunner* main_thread_task_runner) {
+  main_thread_task_runner->PostTask(
       FROM_HERE,
       base::Bind(
           &DelegatedFrameResourceCollection::UnrefResources, self, returned));
@@ -126,8 +125,7 @@ static void UnrefResourcesOnImplThread(
 ReturnCallback
 DelegatedFrameResourceCollection::GetReturnResourcesCallbackForImplThread() {
   return base::Bind(&UnrefResourcesOnImplThread,
-                    weak_ptr_factory_.GetWeakPtr(),
-                    main_thread_runner_);
+                    weak_ptr_factory_.GetWeakPtr());
 }
 
 }  // namespace cc