Copy LatencyInfo from renderer into corresponding Surface.

content/browser/compositor/delegated_frame_host.cc

Index: content/browser/compositor/delegated_frame_host.cc
diff --git a/content/browser/compositor/delegated_frame_host.cc b/content/browser/compositor/delegated_frame_host.cc
index 28d586b3d694ed0ce9d0c38470776721b4172560..131c417a4008700988e5e77e61a27e28832175d4 100644
--- a/content/browser/compositor/delegated_frame_host.cc
+++ b/content/browser/compositor/delegated_frame_host.cc
@@ -391,6 +391,16 @@ void DelegatedFrameHost::SwapDelegatedFrame(
       scoped_ptr<cc::CompositorFrame> compositor_frame =
           make_scoped_ptr(new cc::CompositorFrame());
       compositor_frame->delegated_frame_data = frame_data.Pass();
+
+      std::vector<ui::LatencyInfo>::const_iterator it;
+      for (it = latency_info.begin(); it != latency_info.end(); ++it)
+        compositor_frame->metadata.latency_info.push_back(*it);

[danakj, 2014/09/23 19:48:27]

can you use compositor_frame->metadata.latency_info.insert(latency_info.begin(),
latency_info.end().. ) to make this simpler?

[jbauman, 2014/09/23 19:57:24]

Done.

+      for (it = skipped_latency_info_list_.begin();
+           it != skipped_latency_info_list_.end();
+           ++it)
+        compositor_frame->metadata.latency_info.push_back(*it);

[danakj, 2014/09/23 19:48:27]

same here?

[jbauman, 2014/09/23 19:57:24]

Moved above the other, and used swap instead.

+      skipped_latency_info_list_.clear();
+
       base::Closure ack_callback;
       if (compositor) {
         ack_callback = base::Bind(&DelegatedFrameHost::SendDelegatedFrameAck,