Remove LatencyInfo::sequence_number. (May break metrics).

cc/trees/layer_tree_host_impl_unittest.cc

Index: cc/trees/layer_tree_host_impl_unittest.cc
diff --git a/cc/trees/layer_tree_host_impl_unittest.cc b/cc/trees/layer_tree_host_impl_unittest.cc
index 50d4aee3ee134a30d2ab83462d2e60490089a81b..78cfd8d17f9c2dad8174b5f32d3e6f695e79d57b 100644
--- a/cc/trees/layer_tree_host_impl_unittest.cc
+++ b/cc/trees/layer_tree_host_impl_unittest.cc
@@ -2110,8 +2110,8 @@ TEST_F(LayerTreeHostImplTest, ImplPinchZoomWheelBubbleBetweenViewports) {
 TEST_F(LayerTreeHostImplTest, ScrollWithSwapPromises) {
   ui::LatencyInfo latency_info;
   latency_info.set_trace_id(5);
-  latency_info.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0,
-                                1234);
+  latency_info.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0);
+
   std::unique_ptr<SwapPromise> swap_promise(
       new LatencyInfoSwapPromise(latency_info));
 
@@ -9165,8 +9165,7 @@ TEST_F(LayerTreeHostImplTest, LatencyInfoPassedToCompositorFrameMetadata) {
 
   ui::LatencyInfo latency_info;
   latency_info.set_trace_id(5);
-  latency_info.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0,
-                                0);
+  latency_info.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0);
   std::unique_ptr<SwapPromise> swap_promise(
       new LatencyInfoSwapPromise(latency_info));
   host_impl_->active_tree()->QueuePinnedSwapPromise(std::move(swap_promise));