[scheduler] Initial budget for time-based throttling.

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 7e089a11bb383f7ec7c944ad12efeed8f04729c9..a1608bcf8022ff4f5c7332b18df266431c0451b9 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
@@ -56,7 +56,7 @@ class BLINK_PLATFORM_EXPORT TaskQueueThrottler : public TimeDomain::Observer {
     // Throttle task queues from this time budget pool if tasks are running
     // for more than |cpu_percentage| per cent of wall time.
     // This function does not affect internal time budget level.
-    void SetTimeBudget(base::TimeTicks now, double cpu_percentage);
+    void SetTimeBudgetRecoveryRate(base::TimeTicks now, double cpu_percentage);
 
     // Adds |queue| to given pool. If the pool restriction does not allow
     // a task to be run immediately and |queue| is throttled, |queue| becomes
@@ -83,6 +83,11 @@ class BLINK_PLATFORM_EXPORT TaskQueueThrottler : public TimeDomain::Observer {
 
     bool IsThrottlingEnabled() const;
 
+    // Increase budget level by given value. This function DOES NOT unblock
+    // queues even if they are allowed to run with increased budget level.
+    void GrantAdditionalBudget(base::TimeTicks now,
+                               base::TimeDelta budget_level);
+
     const char* Name() const;
 
     // Set callback which will be called every time when this budget pool