[scheduler] Teach scheduler about audio state

third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.h

Index: third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.h
diff --git a/third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.h b/third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.h
index 5b249c76f3fe12d1aa0ca0d09968a7c4cfd86c4a..df2635446829384600aa7aebc5b07a3ddeb73032 100644
--- a/third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.h
+++ b/third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.h
@@ -162,7 +162,13 @@ class BLINK_PLATFORM_EXPORT TaskQueueThrottler : public TimeDomain::Observer {
 
   // Tells the TaskQueueThrottler we're using virtual time, which disables all

[alex clarke (OOO till 29th), 2016/09/30 10:33:46]

Remove out of date comment.

[altimin, 2016/10/03 11:15:26]

Done.

   // throttling.
-  void EnableVirtualTime();
+  // Disable throttling for all queues, this setting takes precedence over
+  // all other throttling settings. Designed to be used when a global event
+  // disabling throttling happens (e.g. audio is playing).
+  void DisableThrottling();

[Sami, 2016/09/30 11:52:09]

These two need a unit test or a couple I think.

[altimin, 2016/10/03 11:15:25]

Done.

+
+  // Enable back global throttling.
+  void EnableThrottling();
 
   const ThrottledTimeDomain* time_domain() const { return time_domain_.get(); }
 
@@ -236,7 +242,7 @@ class BLINK_PLATFORM_EXPORT TaskQueueThrottler : public TimeDomain::Observer {
 
   CancelableClosureHolder pump_throttled_tasks_closure_;
   base::Optional<base::TimeTicks> pending_pump_throttled_tasks_runtime_;
-  bool virtual_time_;
+  bool allow_throttling_;
 
   std::unordered_map<TimeBudgetPool*, std::unique_ptr<TimeBudgetPool>>
       time_budget_pools_;