Hook up DidReceiveInputEvent to the blink scheduler

content/renderer/scheduler/renderer_scheduler_impl.cc

 // 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.
 
 #include "content/renderer/scheduler/renderer_scheduler_impl.h"
 
 #include "base/bind.h"
 #include "cc/output/begin_frame_args.h"
 #include "content/renderer/scheduler/renderer_task_queue_selector.h"
 #include "ui/gfx/frame_time.h"
@@ skipping 84 matching lines @@
   // compositor priority policy - http://crbug.com/429814.
   base::AutoLock lock(incoming_signals_lock_);
   if (last_input_time_.is_null()) {
     // Update scheduler policy if should start a new compositor policy mode.
     policy_may_need_update_.SetLocked(true);
     PostUpdatePolicyOnControlRunner(base::TimeDelta());
   }
   last_input_time_ = Now();
 }
 
+void RendererSchedulerImpl::DidAnimateForInputOnCompositorThread() {
+  DidReceiveInputEventOnCompositorThread();

[rmcilroy, 2014/11/06 19:45:12]

Maybe pull out the code in DidReceiveInputEventOnCompositorThread to a separate
function (e.g., UpdateForInputEvent() and have both public methods call this.

[alex clarke (OOO till 29th), 2014/11/06 21:19:05]

Done.

+}
+
 bool RendererSchedulerImpl::ShouldYieldForHighPriorityWork() {
   main_thread_checker_.CalledOnValidThread();
   if (!task_queue_manager_)
     return false;
 
   MaybeUpdatePolicy();
   // We only yield if we are in the compositor priority and there is compositor
   // work outstanding. Note: even though the control queue is higher priority
   // we don't yield for it since these tasks are not user-provided work and they
   // are only intended to run before the next task, not interrupt the tasks.
@@ skipping 94 matching lines @@
 void RendererSchedulerImpl::PollableNeedsUpdateFlag::SetLocked(bool value) {
   write_lock_->AssertAcquired();
   base::subtle::Release_Store(&flag_, value);
 }
 
 bool RendererSchedulerImpl::PollableNeedsUpdateFlag::IsSet() const {
   thread_checker_.CalledOnValidThread();
   return base::subtle::Acquire_Load(&flag_) != 0;
 }
 }  // namespace content