Pipe impl_latency_takes_priority_ to the RenderScheduler.

components/scheduler/renderer/renderer_scheduler_impl.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_IMPL_H_
 #define COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_IMPL_H_
 
 #include "base/atomicops.h"
 #include "base/synchronization/lock.h"
 #include "components/scheduler/child/idle_helper.h"
@@ skipping 187 matching lines @@
 
   base::TimeTicks estimated_next_frame_begin_;
 
   // The incoming_signals_lock_ mutex protects access to all variables in the
   // (contiguous) block below.
   mutable base::Lock incoming_signals_lock_;
   base::TimeTicks last_input_signal_time_;
   int pending_main_thread_input_event_count_;
   bool awaiting_touch_start_response_;
 
+  bool begin_main_frame_on_critical_path_;
+
   // Variables in this (contiguous) block are only accessed from the compositor
   // thread.
   blink::WebInputEvent::Type last_input_type_;
 
   PollableThreadSafeFlag policy_may_need_update_;
   int timer_queue_suspend_count_;  // TIMER_TASK_QUEUE suspended if non-zero.
 
   bool in_idle_period_;
   base::WeakPtrFactory<RendererSchedulerImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererSchedulerImpl);
 };
 
 }  // namespace scheduler
 
 #endif  // COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_IMPL_H_