Removed last references to old sync points.

gpu/command_buffer/client/gpu_control.h

Index: gpu/command_buffer/client/gpu_control.h
diff --git a/gpu/command_buffer/client/gpu_control.h b/gpu/command_buffer/client/gpu_control.h
index c8d20be02aa643f5d3739811114cea90b94d3504..28cd67ae6d1c4c092cc128de8bf45d26d19319f4 100644
--- a/gpu/command_buffer/client/gpu_control.h
+++ b/gpu/command_buffer/client/gpu_control.h
@@ -55,23 +55,6 @@ class GPU_EXPORT GpuControl {
                                              unsigned internalformat,
                                              unsigned usage) = 0;
 
-  // Inserts a sync point, returning its ID. Sync point IDs are global and can
-  // be used for cross-context synchronization.
-  virtual uint32_t InsertSyncPoint() = 0;
-
-  // Inserts a future sync point, returning its ID. Sync point IDs are global
-  // and can be used for cross-context synchronization. The sync point won't be
-  // retired immediately.
-  virtual uint32_t InsertFutureSyncPoint() = 0;
-
-  // Retires a future sync point. This will signal contexts that are waiting
-  // on it to start executing.
-  virtual void RetireSyncPoint(uint32_t sync_point) = 0;
-
-  // Runs |callback| when a sync point is reached.
-  virtual void SignalSyncPoint(uint32_t sync_point,
-                               const base::Closure& callback) = 0;
-
   // Runs |callback| when a query created via glCreateQueryEXT() has cleared
   // passed the glEndQueryEXT() point.
   virtual void SignalQuery(uint32_t query, const base::Closure& callback) = 0;