Re-land: cc: Use worker context for one-copy tile initialization.

cc/test/pixel_test.cc

Index: cc/test/pixel_test.cc
diff --git a/cc/test/pixel_test.cc b/cc/test/pixel_test.cc
index ae3cef1fa1ee633a04065abb09c57a7f851dae72..e7e76ff6699067f0ec718ebc0e77d3471395d16d 100644
--- a/cc/test/pixel_test.cc
+++ b/cc/test/pixel_test.cc
@@ -136,7 +136,7 @@ void PixelTest::SetUpGLRenderer(bool use_skia_gpu_backend,
   resource_provider_ = ResourceProvider::Create(
       output_surface_.get(), shared_bitmap_manager_.get(),
       gpu_memory_buffer_manager_.get(), main_thread_task_runner_.get(), 0,
-      false, 1, false);
+      false, 1);
 
   texture_mailbox_deleter_ = make_scoped_ptr(
       new TextureMailboxDeleter(base::ThreadTaskRunnerHandle::Get()));
@@ -177,7 +177,7 @@ void PixelTest::SetUpSoftwareRenderer() {
   resource_provider_ = ResourceProvider::Create(
       output_surface_.get(), shared_bitmap_manager_.get(),
       gpu_memory_buffer_manager_.get(), main_thread_task_runner_.get(), 0,
-      false, 1, false);
+      false, 1);
   renderer_ =
       SoftwareRenderer::Create(this, &settings_.renderer_settings,
                                output_surface_.get(), resource_provider_.get());