Plumb cc::LatencyInfo through command buffer and output surface

content/common/gpu/client/command_buffer_proxy_impl.cc

Index: content/common/gpu/client/command_buffer_proxy_impl.cc
diff --git a/content/common/gpu/client/command_buffer_proxy_impl.cc b/content/common/gpu/client/command_buffer_proxy_impl.cc
index 61f8922c567fd9edc5f4c31e8b7972f38751f74d..fb10b429d2b5a21785060d992acac7d0673d37ec 100644
--- a/content/common/gpu/client/command_buffer_proxy_impl.cc
+++ b/content/common/gpu/client/command_buffer_proxy_impl.cc
@@ -202,6 +202,13 @@ void CommandBufferProxyImpl::Flush(int32 put_offset) {
                                           ++flush_count_));
 }
 
+void CommandBufferProxyImpl::SetLatencyInfo(
+    const cc::LatencyInfo& latency_info) {
+  if (last_state_.error != gpu::error::kNoError)
+    return;
+  Send(new GpuCommandBufferMsg_SetLatencyInfo(route_id_, latency_info));
+}
+
 gpu::CommandBuffer::State CommandBufferProxyImpl::FlushSync(
     int32 put_offset,
     int32 last_known_get) {