cc: Remove cc::Thread and cc::ThreadImpl.

cc/resources/resource_update_controller_unittest.cc

Index: cc/resources/resource_update_controller_unittest.cc
diff --git a/cc/resources/resource_update_controller_unittest.cc b/cc/resources/resource_update_controller_unittest.cc
index 6196bd1a00b3a54cecd197a38cf73e991931d587..1060801934b6d0fd49e0141d7295adcb2f3091e8 100644
--- a/cc/resources/resource_update_controller_unittest.cc
+++ b/cc/resources/resource_update_controller_unittest.cc
@@ -70,7 +70,7 @@ class WebGraphicsContext3DForUploadTest : public TestWebGraphicsContext3D {
 class ResourceUpdateControllerTest : public Test {
  public:
   ResourceUpdateControllerTest()
-      : proxy_(scoped_ptr<Thread>()),
+      : proxy_(),
         queue_(make_scoped_ptr(new ResourceUpdateQueue)),
         resource_manager_(PrioritizedResourceManager::Create(&proxy_)),
         query_results_available_(0),
@@ -182,7 +182,7 @@ class ResourceUpdateControllerTest : public Test {
     impl_thread_and_main_thread_blocked(&proxy_);
     scoped_ptr<ResourceUpdateController> update_controller =
         ResourceUpdateController::Create(NULL,
-                                         NULL,
+                                         proxy_.ImplThreadTaskRunner(),
                                          queue_.Pass(),
                                          resource_provider_.get());
     update_controller->Finalize();