scheduler: Detect when a main thread touch stream turns into a compositor gesture

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/macros.h"
 #include "base/synchronization/lock.h"
@@ skipping 93 matching lines @@
 
   // Test helpers.
   SchedulerHelper* GetSchedulerHelperForTesting();
   TaskCostEstimator* GetLoadingTaskCostEstimatorForTesting();
   TaskCostEstimator* GetTimerTaskCostEstimatorForTesting();
   IdleTimeEstimator* GetIdleTimeEstimatorForTesting();
   base::TimeTicks CurrentIdleTaskDeadlineForTesting() const;
   void RunIdleTasksForTesting(const base::Closure& callback);
   void EndIdlePeriodForTesting(const base::Closure& callback,
                                base::TimeTicks time_remaining);
+  bool PolicyNeedsUpdateForTesting();
 
   base::TickClock* tick_clock() const;
 
   RealTimeDomain* real_time_domain() const {
     return helper_.real_time_domain();
   }
 
   ThrottlingHelper* throttling_helper() { return throttling_helper_.get(); }
 
  private:
@@ skipping 131 matching lines @@
 
   // Helper for computing the use case. |expected_usecase_duration| will be
   // filled with the amount of time after which the use case should be updated
   // again. If the duration is zero, a new use case update should not be
   // scheduled. Must be called with |any_thread_lock_| held. Can be called from
   // any thread.
   UseCase ComputeCurrentUseCase(
       base::TimeTicks now,
       base::TimeDelta* expected_use_case_duration) const;
 
-  // Works out if a gesture appears to be in progress based on the current
-  // input signals. Can be called from any thread.
-  bool InputSignalsSuggestGestureInProgress(base::TimeTicks now) const;
-
   // An input event of some sort happened, the policy may need updating.
   void UpdateForInputEventOnCompositorThread(blink::WebInputEvent::Type type,
                                              InputEventState input_event_state);
 
   // Returns true if there has been at least one idle period in the last
   // |kIdlePeriodStarvationThresholdMillis|.
   bool HadAnIdlePeriodRecently(base::TimeTicks now) const;
 
   // Helpers for safely suspending/resuming the timer queue after a
   // background/foreground signal.
@@ skipping 138 matching lines @@
 
   PollableThreadSafeFlag policy_may_need_update_;
   base::WeakPtrFactory<RendererSchedulerImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererSchedulerImpl);
 };
 
 }  // namespace scheduler
 
 #endif  // COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_IMPL_H_