cc: Poll for state that triggers draws (synchronous compositor only)

cc/scheduler/scheduler_state_machine.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_state_machine.h"
 
 #include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
@@ skipping 735 matching lines @@
 void SchedulerStateMachine::DidEnterBeginFrame(const BeginFrameArgs& args) {
   current_frame_number_++;
   inside_begin_frame_ = true;
   last_begin_frame_args_ = args;
 }
 
 void SchedulerStateMachine::DidLeaveBeginFrame() {
   inside_begin_frame_ = false;
 }
 
+void SchedulerStateMachine::PollForAnticipatedDrawTriggers() {
+  current_frame_number_++;
+}
+
 void SchedulerStateMachine::SetVisible(bool visible) { visible_ = visible; }
 
 void SchedulerStateMachine::SetNeedsRedraw() { needs_redraw_ = true; }
 
 void SchedulerStateMachine::SetSwapUsedIncompleteTile(
     bool used_incomplete_tile) {
   swap_used_incomplete_tile_ = used_incomplete_tile;
 }
 
 void SchedulerStateMachine::DidDrawIfPossibleCompleted(bool success) {
@@ skipping 91 matching lines @@
     case OUTPUT_SURFACE_ACTIVE:
     case OUTPUT_SURFACE_WAITING_FOR_FIRST_COMMIT:
     case OUTPUT_SURFACE_WAITING_FOR_FIRST_ACTIVATION:
       return true;
   }
   NOTREACHED();
   return false;
 }
 
 }  // namespace cc