Revert of Add LatencyInfo support for Surfaces.

cc/surfaces/surface.cc

Index: cc/surfaces/surface.cc
diff --git a/cc/surfaces/surface.cc b/cc/surfaces/surface.cc
index 8f08d63d9275e9d77d6c1e0fa912b98524272237..0e08ec4f5461c849b14bd8585c6a56476868900c 100644
--- a/cc/surfaces/surface.cc
+++ b/cc/surfaces/surface.cc
@@ -33,7 +33,6 @@
 
 void Surface::QueueFrame(scoped_ptr<CompositorFrame> frame,
                          const base::Closure& callback) {
-  TakeLatencyInfo(&frame->metadata.latency_info);
   scoped_ptr<CompositorFrame> previous_frame = current_frame_.Pass();
   current_frame_ = frame.Pass();
   factory_->ReceiveFromChild(
@@ -61,19 +60,6 @@
   return current_frame_.get();
 }
 
-void Surface::TakeLatencyInfo(std::vector<ui::LatencyInfo>* latency_info) {
-  if (!current_frame_)
-    return;
-  if (latency_info->empty()) {
-    current_frame_->metadata.latency_info.swap(*latency_info);
-    return;
-  }
-  std::copy(current_frame_->metadata.latency_info.begin(),
-            current_frame_->metadata.latency_info.end(),
-            std::back_inserter(*latency_info));
-  current_frame_->metadata.latency_info.clear();
-}
-
 void Surface::RunDrawCallbacks() {
   if (!draw_callback_.is_null()) {
     base::Closure callback = draw_callback_;