content/gpu: Simplify stub scheduling.

gpu/command_buffer/service/gpu_scheduler.h

Index: gpu/command_buffer/service/gpu_scheduler.h
diff --git a/gpu/command_buffer/service/gpu_scheduler.h b/gpu/command_buffer/service/gpu_scheduler.h
index e7eba15b9bbffef25695817f92b7013205467d0b..23fb35bec4ae8638af3f04e0eb6b271a4007baf1 100644
--- a/gpu/command_buffer/service/gpu_scheduler.h
+++ b/gpu/command_buffer/service/gpu_scheduler.h
@@ -126,10 +126,6 @@ class GPU_EXPORT GpuScheduler
   // Greater than zero if this is waiting to be rescheduled before continuing.
   int unscheduled_count_;
 
-  // The number of times this scheduler has been artificially rescheduled on
-  // account of a timeout.
-  int rescheduled_count_;
-
   SchedulingChangedCallback scheduling_changed_callback_;
   base::Closure descheduled_callback_;
   base::Closure command_processed_callback_;
@@ -138,10 +134,6 @@ class GPU_EXPORT GpuScheduler
   scoped_refptr<PreemptionFlag> preemption_flag_;
   bool was_preempted_;
 
-  // A factory for outstanding rescheduling tasks that is invalidated whenever
-  // the scheduler is rescheduled.
-  base::WeakPtrFactory<GpuScheduler> reschedule_task_factory_;
-
   DISALLOW_COPY_AND_ASSIGN(GpuScheduler);
 };