[scheduler] Implement time-based cpu throttling.

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

Index: third_party/WebKit/Source/platform/scheduler/renderer/web_view_scheduler_impl.h
diff --git a/third_party/WebKit/Source/platform/scheduler/renderer/web_view_scheduler_impl.h b/third_party/WebKit/Source/platform/scheduler/renderer/web_view_scheduler_impl.h
index 09fe1754954f13cb0febfe03eeec96eb006c27e5..11e575a41f5bdf2b66cbe8a78b00e11a78594215 100644
--- a/third_party/WebKit/Source/platform/scheduler/renderer/web_view_scheduler_impl.h
+++ b/third_party/WebKit/Source/platform/scheduler/renderer/web_view_scheduler_impl.h
@@ -14,6 +14,7 @@
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebScheduler.h"
 #include "public/platform/WebViewScheduler.h"
+#include "platform/scheduler/renderer/task_queue_throttler.h"
 
 namespace base {
 namespace trace_event {
@@ -58,6 +59,8 @@ class BLINK_PLATFORM_EXPORT WebViewSchedulerImpl : public WebViewScheduler {
   void Unregister(WebFrameSchedulerImpl* frame_scheduler);
 
  private:
+  friend class WebFrameSchedulerImpl;

[Sami, 2016/09/07 15:20:44]

Why's this needed?

[altimin, 2016/09/09 15:43:58]

Thanks for spotting, left from prototyping phase. We'll need it when we actually
start throttling.

+
   void setAllowVirtualTimeToAdvance(bool allow_virtual_time_to_advance);
   void ApplyVirtualTimePolicy();