Add SwapPromise support to LayerTreeHost and LayerTreeImpl

cc/trees/layer_tree_host_impl.cc

 // Copyright 2011 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/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/basictypes.h"
@@ skipping 1382 matching lines @@
 bool LayerTreeHostImpl::IsContextLost() {
   DCHECK(proxy_->IsImplThread());
   return renderer_ && renderer_->IsContextLost();
 }
 
 const RendererCapabilities& LayerTreeHostImpl::GetRendererCapabilities() const {
   return renderer_->Capabilities();
 }
 
 bool LayerTreeHostImpl::SwapBuffers(const LayerTreeHostImpl::FrameData& frame) {
-  if (frame.has_no_damage)
+  if (frame.has_no_damage) {
+    active_tree()->BreakSwapPromises(SwapPromise::SWAP_FAILS);
     return false;
+  }
   renderer_->SwapBuffers();
   active_tree_->ClearLatencyInfo();
+  active_tree()->FinishSwapPromises();
   return true;
 }
 
 void LayerTreeHostImpl::SetNeedsBeginImplFrame(bool enable) {
   if (output_surface_)
     output_surface_->SetNeedsBeginImplFrame(enable);
 }
 
 gfx::SizeF LayerTreeHostImpl::UnscaledScrollableViewportSize() const {
   // Use the root container layer bounds if it clips to them, otherwise, the
@@ skipping 1418 matching lines @@
   std::set<UIResourceId>::iterator found_in_evicted =
       evicted_ui_resources_.find(uid);
   if (found_in_evicted == evicted_ui_resources_.end())
     return;
   evicted_ui_resources_.erase(found_in_evicted);
   if (evicted_ui_resources_.empty())
     client_->OnCanDrawStateChanged(CanDraw());
 }
 
 }  // namespace cc