Add latency measurement system

webkit/compositor_bindings/web_layer_tree_view_impl.cc

Index: webkit/compositor_bindings/web_layer_tree_view_impl.cc
diff --git a/webkit/compositor_bindings/web_layer_tree_view_impl.cc b/webkit/compositor_bindings/web_layer_tree_view_impl.cc
index 9787f03627aee46a79af5d757ef4a8a0d4f86578..002644412cbea94a004e1444e78bfed85973deaf 100644
--- a/webkit/compositor_bindings/web_layer_tree_view_impl.cc
+++ b/webkit/compositor_bindings/web_layer_tree_view_impl.cc
@@ -211,6 +211,11 @@ void WebLayerTreeViewImpl::loseCompositorContext(int numTimes)
     m_layerTreeHost->loseOutputSurface(numTimes);
 }
 
+void WebLayerTreeViewImpl::setLatencyInfo(const WebKit::WebLatencyInfo& latencyInfo)
+{
+    m_layerTreeHost->setLatencyInfo(static_cast<const WebKit::WebLatencyInfoImpl&>(latencyInfo));
+}
+
 void WebLayerTreeViewImpl::willBeginFrame()
 {
     m_client->willBeginFrame();
@@ -281,4 +286,9 @@ void WebLayerTreeViewImpl::scheduleComposite()
     m_client->scheduleComposite();
 }
 
+void WebLayerTreeViewImpl::onReceivedLatencyInfo(const WebKit::WebLatencyInfoImpl& latencyInfo)
+{
+    m_client->onReceivedLatencyInfo(static_cast<const WebKit::WebLatencyInfo&>(latencyInfo));
+}
+
 } // namespace WebKit