Timeline: add support for deferred canvas rasterization

Source/WebKit/chromium/src/WebDevToolsAgentImpl.cpp

Index: Source/WebKit/chromium/src/WebDevToolsAgentImpl.cpp
diff --git a/Source/WebKit/chromium/src/WebDevToolsAgentImpl.cpp b/Source/WebKit/chromium/src/WebDevToolsAgentImpl.cpp
index e19338173975487a232f2eaadd5d3e67a4066fbc..2c73b3ae898d8a0ba2c064d2ca8e7c82305a249a 100644
--- a/Source/WebKit/chromium/src/WebDevToolsAgentImpl.cpp
+++ b/Source/WebKit/chromium/src/WebDevToolsAgentImpl.cpp
@@ -435,6 +435,18 @@ void WebDevToolsAgentImpl::didComposite()
         ic->didComposite();
 }
 
+void WebDevToolsAgentImpl::willUpdateLayer(int layerId)
+{
+    if (InspectorController* ic = inspectorController())
+        ic->willUpdateLayer(layerId);
+}
+
+void WebDevToolsAgentImpl::didUpdateLayer()
+{
+    if (InspectorController* ic = inspectorController())
+        ic->didUpdateLayer();
+}
+
 void WebDevToolsAgentImpl::didCreateScriptContext(WebFrameImpl* webframe, int worldId)
 {
     // Skip non main world contexts.