cc: Add SwapPromiseManager and SurfaceSequenceGenerator.

cc/trees/single_thread_proxy.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/single_thread_proxy.h"
 
 #include "base/auto_reset.h"
 #include "base/memory/ptr_util.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 474 matching lines @@
   }
 
   // Run the "main thread" and get it to commit.
   {
 #if DCHECK_IS_ON()
     DCHECK(inside_impl_frame_);
 #endif
     DoBeginMainFrame(begin_frame_args);
     DoCommit();
 
-    DCHECK_EQ(0u, layer_tree_host_->num_queued_swap_promises())
+    DCHECK_EQ(
+        0u,
+        layer_tree_host_->GetSwapPromiseManager()->num_queued_swap_promises())
         << "Commit should always succeed and transfer promises.";
   }
 
   // Finish the impl frame.
   {
     DebugScopedSetImplThread impl(task_runner_provider_);
     layer_tree_host_impl_->ActivateSyncTree();
     DCHECK(
         !layer_tree_host_impl_->active_tree()->needs_update_draw_properties());
     layer_tree_host_impl_->PrepareTiles();
@@ skipping 141 matching lines @@
   if (defer_commits_) {
     TRACE_EVENT_INSTANT0("cc", "EarlyOut_DeferCommit",
                          TRACE_EVENT_SCOPE_THREAD);
     BeginMainFrameAbortedOnImplThread(
         CommitEarlyOutReason::ABORTED_DEFERRED_COMMIT);
     return;
   }
 
   // This checker assumes NotifyReadyToCommit in this stack causes a synchronous
   // commit.
-  ScopedAbortRemainingSwapPromises swap_promise_checker(layer_tree_host_);
+  ScopedAbortRemainingSwapPromises swap_promise_checker(
+      layer_tree_host_->GetSwapPromiseManager());
 
   if (!layer_tree_host_->IsVisible()) {
     TRACE_EVENT_INSTANT0("cc", "EarlyOut_NotVisible", TRACE_EVENT_SCOPE_THREAD);
     BeginMainFrameAbortedOnImplThread(
         CommitEarlyOutReason::ABORTED_NOT_VISIBLE);
     return;
   }
 
   // Prevent new commits from being requested inside DoBeginMainFrame.
   // Note: We do not want to prevent SetNeedsAnimate from requesting
@@ skipping 96 matching lines @@
 void SingleThreadProxy::DidFinishImplFrame() {
   layer_tree_host_impl_->DidFinishImplFrame();
 #if DCHECK_IS_ON()
   DCHECK(inside_impl_frame_)
       << "DidFinishImplFrame called while not inside an impl frame!";
   inside_impl_frame_ = false;
 #endif
 }
 
 }  // namespace cc