Remove current implementation of frame timing events.

cc/layers/layer_impl.h

Index: cc/layers/layer_impl.h
diff --git a/cc/layers/layer_impl.h b/cc/layers/layer_impl.h
index e44a585a1a2f8eeb50ad74a660f976327c7e7f5d..fdb8218bfde197a11ec1affdf3e485516900edb9 100644
--- a/cc/layers/layer_impl.h
+++ b/cc/layers/layer_impl.h
@@ -22,7 +22,6 @@
 #include "cc/base/cc_export.h"
 #include "cc/base/region.h"
 #include "cc/base/synced_property.h"
-#include "cc/debug/frame_timing_request.h"
 #include "cc/input/input_handler.h"
 #include "cc/layers/draw_properties.h"
 #include "cc/layers/layer_collections.h"
@@ -532,13 +531,6 @@ class CC_EXPORT LayerImpl {
   void Set3dSortingContextId(int id);
   int sorting_context_id() { return sorting_context_id_; }
 
-  void SetFrameTimingRequests(
-      const std::vector<FrameTimingRequest>& frame_timing_requests);
-  const std::vector<FrameTimingRequest>& frame_timing_requests() const {
-    return frame_timing_requests_;
-  }
-  void GatherFrameTimingRequestIds(std::vector<int64_t>* request_ids);
-
   const SyncedScrollOffset* synced_scroll_offset() const;
   SyncedScrollOffset* synced_scroll_offset();
 
@@ -752,8 +744,6 @@ class CC_EXPORT LayerImpl {
 
   bool force_render_surface_;
 
-  std::vector<FrameTimingRequest> frame_timing_requests_;
-  bool frame_timing_requests_dirty_;
   bool scrolls_drawn_descendant_;
   // If true, the layer or one of its descendants has a touch handler.
   bool layer_or_descendant_has_touch_handler_;