Experimental: Remove chromium shared timers

content/renderer/scheduler/renderer_scheduler.h

Index: content/renderer/scheduler/renderer_scheduler.h
diff --git a/content/renderer/scheduler/renderer_scheduler.h b/content/renderer/scheduler/renderer_scheduler.h
index 7d2c39e3a86d5379382a8bf6929026343eee5bb4..d7fb30cff39dc42c537a9849b2556a70482ae620 100644
--- a/content/renderer/scheduler/renderer_scheduler.h
+++ b/content/renderer/scheduler/renderer_scheduler.h
@@ -36,6 +36,9 @@ class CONTENT_EXPORT RendererScheduler {
   // to resource dispatch, foreground HTML parsing, etc...
   virtual scoped_refptr<base::SingleThreadTaskRunner> LoadingTaskRunner() = 0;
 
+  // Returns the timer task runner.  This queue is intended for DOM Timers.
+  virtual scoped_refptr<base::SingleThreadTaskRunner> TimerTaskRunner() = 0;
+
   // Called to notify about the start of an extended period where no frames
   // need to be drawn. Must be called from the main thread.
   virtual void BeginFrameNotExpectedSoon() = 0;
@@ -83,6 +86,15 @@ class CONTENT_EXPORT RendererScheduler {
   // silently dropped.
   virtual void Shutdown() = 0;
 
+  // Suspends the timer queue and increments the timer queue suspension count.
+  // May only be called from the main thread.
+  virtual void SuspendTimerQueue() = 0;
+
+  // Decrements the timer queue suspension count and re-enables the timer queue
+  // if the suspension count is zero and the scheduler is not in TOUCH_START
+  // policy.
+  virtual void ResumeTimerQueue() = 0;
+
  protected:
   RendererScheduler();
   DISALLOW_COPY_AND_ASSIGN(RendererScheduler);