Timeline: show white overlay till page being reloaded paints

third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp

Index: third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp b/third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp
index 8b8352cbc952be189c44c67450b0ac9ff007ef18..3b063a79df12b3769ddb0e3c1220596e9ea4d5aa 100644
--- a/third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp
+++ b/third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp
@@ -521,6 +521,12 @@ void WebDevToolsAgentImpl::didRemovePageOverlay(const GraphicsLayer* layer)
         m_layerTreeAgent->didRemovePageOverlay(layer);
 }
 
+void WebDevToolsAgentImpl::rootLayerCleared()
+{
+    if (m_tracingAgent)
+        m_tracingAgent->rootLayerCleared();
+}
+
 void WebDevToolsAgentImpl::layerTreeViewChanged(WebLayerTreeView* layerTreeView)
 {
     m_layerTreeId = layerTreeView ? layerTreeView->layerTreeId() : 0;
@@ -540,6 +546,18 @@ void WebDevToolsAgentImpl::disableTracing()
         m_client->disableTracing();
 }
 
+void WebDevToolsAgentImpl::showReloadingBlanket()
+{
+    if (m_overlay)
+        m_overlay->showReloadingBlanket();
+}
+
+void WebDevToolsAgentImpl::hideReloadingBlanket()
+{
+    if (m_overlay)
+        m_overlay->hideReloadingBlanket();
+}
+
 void WebDevToolsAgentImpl::setCPUThrottlingRate(double rate)
 {
     if (m_client)