cc: Get rid of PostSwapBuffersComplete.

cc/test/fake_compositor_frame_sink.cc

 // Copyright 2012 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/fake_compositor_frame_sink.h"
 
 #include "base/bind.h"
-#include "base/message_loop/message_loop.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "cc/output/compositor_frame_sink_client.h"
 #include "cc/resources/returned_resource.h"
 #include "cc/test/begin_frame_args_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 
 FakeCompositorFrameSink::FakeCompositorFrameSink(
     scoped_refptr<ContextProvider> context_provider,
     scoped_refptr<ContextProvider> worker_context_provider)
     : CompositorFrameSink(std::move(context_provider),
-                          std::move(worker_context_provider)) {}
+                          std::move(worker_context_provider)),
+      weak_ptr_factory_(this) {}
 
 FakeCompositorFrameSink::~FakeCompositorFrameSink() = default;
 
 void FakeCompositorFrameSink::SwapBuffers(CompositorFrame frame) {
   ReturnResourcesHeldByParent();
 
   last_sent_frame_.reset(new CompositorFrame(std::move(frame)));
   ++num_sent_frames_;
 
   if (last_sent_frame_->delegated_frame_data) {
     auto* frame_data = last_sent_frame_->delegated_frame_data.get();
     last_swap_rect_ = frame_data->render_pass_list.back()->damage_rect;
     last_swap_rect_valid_ = true;
   } else {
     last_swap_rect_ = gfx::Rect();
     last_swap_rect_valid_ = false;
   }
 
   if (last_sent_frame_->delegated_frame_data || !context_provider()) {
     if (last_sent_frame_->delegated_frame_data) {
       auto* frame_data = last_sent_frame_->delegated_frame_data.get();
       resources_held_by_parent_.insert(resources_held_by_parent_.end(),
                                        frame_data->resource_list.begin(),
                                        frame_data->resource_list.end());
     }
   }
 
-  PostSwapBuffersComplete();
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&FakeCompositorFrameSink::SwapBuffersAck,
+                            weak_ptr_factory_.GetWeakPtr()));
+}
+
+void FakeCompositorFrameSink::SwapBuffersAck() {
+  client_->DidSwapBuffersComplete();
 }
 
 bool FakeCompositorFrameSink::BindToClient(CompositorFrameSinkClient* client) {
   if (CompositorFrameSink::BindToClient(client)) {
     client_ = client;
     return true;
   } else {
     return false;
   }
 }
@@ skipping 10 matching lines @@
     // Return the last frame's resources immediately.
     ReturnedResourceArray resources;
     for (const auto& resource : resources_held_by_parent_)
       resources.push_back(resource.ToReturnedResource());
     resources_held_by_parent_.clear();
     client_->ReclaimResources(resources);
   }
 }
 
 }  // namespace cc