Defer compositor context creation to the thread.

cc/test/pixel_test_output_surface.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/test/pixel_test_output_surface.h"
 
 #include "cc/output/output_surface_client.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "ui/gfx/transform.h"
 
 namespace cc {
 
 PixelTestOutputSurface::PixelTestOutputSurface(
-    scoped_refptr<ContextProvider> context_provider,
+    std::unique_ptr<ContextProvider::DeferredCreate> context_provider_create,
     scoped_refptr<ContextProvider> worker_context_provider,
     bool flipped_output_surface,
     std::unique_ptr<BeginFrameSource> begin_frame_source)
-    : OutputSurface(context_provider, worker_context_provider),
+    : OutputSurface(std::move(context_provider_create),
+                    std::move(worker_context_provider)),
       begin_frame_source_(std::move(begin_frame_source)),
       external_stencil_test_(false) {
   capabilities_.adjust_deadline_for_parent = false;
   capabilities_.flipped_output_surface = flipped_output_surface;
 }
 
 PixelTestOutputSurface::PixelTestOutputSurface(
-    scoped_refptr<ContextProvider> context_provider,
+    std::unique_ptr<ContextProvider::DeferredCreate> context_provider_create,
     bool flipped_output_surface,
     std::unique_ptr<BeginFrameSource> begin_frame_source)
-    : PixelTestOutputSurface(context_provider,
+    : PixelTestOutputSurface(std::move(context_provider_create),
                              nullptr,
                              flipped_output_surface,
                              std::move(begin_frame_source)) {}
 
 PixelTestOutputSurface::PixelTestOutputSurface(
     std::unique_ptr<SoftwareOutputDevice> software_device,
     std::unique_ptr<BeginFrameSource> begin_frame_source)
     : OutputSurface(std::move(software_device)),
       begin_frame_source_(std::move(begin_frame_source)),
       external_stencil_test_(false) {}
@@ skipping 22 matching lines @@
 bool PixelTestOutputSurface::HasExternalStencilTest() const {
   return external_stencil_test_;
 }
 
 void PixelTestOutputSurface::SwapBuffers(CompositorFrame* frame) {
   PostSwapBuffersComplete();
   client_->DidSwapBuffers();
 }
 
 }  // namespace cc