Reland of cc: Remove frame queuing from the scheduler.

cc/test/test_compositor_frame_sink.cc

 // Copyright 2016 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/test_compositor_frame_sink.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "cc/output/begin_frame_args.h"
@@ skipping 18 matching lines @@
     bool synchronous_composite,
     bool force_disable_reclaim_resources)
     : CompositorFrameSink(std::move(compositor_context_provider),
                           std::move(worker_context_provider)),
       frame_sink_id_(kCompositorFrameSinkId),
       surface_manager_(new SurfaceManager),
       surface_id_allocator_(new SurfaceIdAllocator()),
       surface_factory_(
           new SurfaceFactory(frame_sink_id_, surface_manager_.get(), this)),
       display_context_shared_with_compositor_(
-          display_output_surface->context_provider() == context_provider()),
-      weak_ptrs_(this) {
+          display_output_surface->context_provider() == context_provider()) {
   std::unique_ptr<SyntheticBeginFrameSource> begin_frame_source;
   std::unique_ptr<DisplayScheduler> scheduler;
   if (!synchronous_composite) {
     if (renderer_settings.disable_display_vsync) {
       begin_frame_source.reset(new BackToBackBeginFrameSource(
           base::MakeUnique<DelayBasedTimeSource>(task_runner)));
     } else {
       begin_frame_source.reset(new DelayBasedBeginFrameSource(
           base::MakeUnique<DelayBasedTimeSource>(task_runner)));
       begin_frame_source->SetAuthoritativeVSyncInterval(
@@ skipping 55 matching lines @@
     if (!delegated_local_frame_id_.is_null())
       surface_factory_->Destroy(delegated_local_frame_id_);
     surface_manager_->UnregisterSurfaceFactoryClient(frame_sink_id_);
     surface_manager_->InvalidateFrameSinkId(frame_sink_id_);
     bound_ = false;
   }
   display_ = nullptr;
   surface_factory_ = nullptr;
   surface_id_allocator_ = nullptr;
   surface_manager_ = nullptr;
-  weak_ptrs_.InvalidateWeakPtrs();
   CompositorFrameSink::DetachFromClient();
 }
 
 void TestCompositorFrameSink::SwapBuffers(CompositorFrame frame) {
   if (test_client_)
     test_client_->DisplayReceivedCompositorFrame(frame);
 
   if (delegated_local_frame_id_.is_null()) {
     delegated_local_frame_id_ = surface_id_allocator_->GenerateId();
     surface_factory_->Create(delegated_local_frame_id_);
   }
   display_->SetSurfaceId(SurfaceId(frame_sink_id_, delegated_local_frame_id_),
                          frame.metadata.device_scale_factor);
 
   gfx::Size frame_size =
       frame.delegated_frame_data->render_pass_list.back()->output_rect.size();
   display_->Resize(frame_size);
 
   bool synchronous = !display_->has_scheduler();
 
   surface_factory_->SubmitCompositorFrame(
       delegated_local_frame_id_, std::move(frame),
       base::Bind(&TestCompositorFrameSink::DidDrawCallback,
-                 weak_ptrs_.GetWeakPtr(), synchronous));
+                 base::Unretained(this)));
 
   for (std::unique_ptr<CopyOutputRequest>& copy_request : copy_requests_) {
     surface_factory_->RequestCopyOfSurface(delegated_local_frame_id_,
                                            std::move(copy_request));
   }
   copy_requests_.clear();
 
   if (synchronous)
     display_->DrawAndSwap();
 }
 
-void TestCompositorFrameSink::DidDrawCallback(bool synchronous) {
+void TestCompositorFrameSink::DidDrawCallback() {
   // This is the frame ack to unthrottle the next frame, not actually a notice
   // that drawing is done.
-  if (synchronous) {
-    // For synchronous draws, this must be posted to a new stack because we are
-    // still the original call to SwapBuffers, and we want to leave that before
-    // saying that it is done.
-    CompositorFrameSink::PostSwapBuffersComplete();
-  } else {
-    client_->DidSwapBuffersComplete();
-  }
+  CompositorFrameSink::PostSwapBuffersComplete();
 }
 
 void TestCompositorFrameSink::ForceReclaimResources() {
   if (capabilities_.can_force_reclaim_resources &&
       !delegated_local_frame_id_.is_null()) {
     surface_factory_->SubmitCompositorFrame(delegated_local_frame_id_,
                                             CompositorFrame(),
                                             SurfaceFactory::DrawCallback());
   }
 }
@@ skipping 18 matching lines @@
   if (test_client_)
     test_client_->DisplayWillDrawAndSwap(will_draw_and_swap, render_passes);
 }
 
 void TestCompositorFrameSink::DisplayDidDrawAndSwap() {
   if (test_client_)
     test_client_->DisplayDidDrawAndSwap();
 }
 
 }  // namespace cc