cc: Allow the main thread to cancel commits

cc/scheduler/scheduler.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/scheduler/scheduler.h"
 
 #include "base/auto_reset.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 
@@ skipping 67 matching lines @@
   state_machine_.SetMainThreadNeedsLayerTextures();
   ProcessScheduledActions();
 }
 
 void Scheduler::FinishCommit() {
   TRACE_EVENT0("cc", "Scheduler::FinishCommit");
   state_machine_.FinishCommit();
   ProcessScheduledActions();
 }
 
-void Scheduler::BeginFrameAbortedByMainThread() {
+void Scheduler::BeginFrameAbortedByMainThread(bool cancel_commit) {
   TRACE_EVENT0("cc", "Scheduler::BeginFrameAbortedByMainThread");
-  state_machine_.BeginFrameAbortedByMainThread();
+  state_machine_.BeginFrameAbortedByMainThread(cancel_commit);
   ProcessScheduledActions();
 }
 
 void Scheduler::DidLoseOutputSurface() {
   TRACE_EVENT0("cc", "Scheduler::DidLoseOutputSurface");
   state_machine_.DidLoseOutputSurface();
   ProcessScheduledActions();
 }
 
 void Scheduler::DidCreateAndInitializeOutputSurface() {
@@ skipping 134 matching lines @@
 
   SetupNextBeginFrameIfNeeded();
   client_->DidAnticipatedDrawTimeChange(AnticipatedDrawTime());
 }
 
 bool Scheduler::WillDrawIfNeeded() const {
   return !state_machine_.DrawSuspendedUntilCommit();
 }
 
 }  // namespace cc