DevTools: add ParseAuthorStyleSheet events to Timeline

Source/core/inspector/InspectorTraceEvents.cpp

Index: Source/core/inspector/InspectorTraceEvents.cpp
diff --git a/Source/core/inspector/InspectorTraceEvents.cpp b/Source/core/inspector/InspectorTraceEvents.cpp
index 60e2d4efcbce5cf6f3387118dc6cdc68758f398f..c2bfc3d0e68a811ee0d7952430cf701aae510a85 100644
--- a/Source/core/inspector/InspectorTraceEvents.cpp
+++ b/Source/core/inspector/InspectorTraceEvents.cpp
@@ -11,6 +11,7 @@
 #include "core/css/invalidation/DescendantInvalidationSet.h"
 #include "core/dom/StyleChangeReason.h"
 #include "core/events/Event.h"
+#include "core/fetch/CSSStyleSheetResource.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/inspector/IdentifiersFactory.h"
@@ -457,6 +458,13 @@ PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorParseHtmlEvent::beginD
     return value.release();
 }
 
+PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorParseAuthorStyleSheetEvent::data(const CSSStyleSheetResource* cachedStyleSheet)
+{
+    RefPtr<TracedValue> value = TracedValue::create();
+    value->setString("styleSheetUrl", cachedStyleSheet->url().string());
+    return value.release();
+}
+
 PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorXhrReadyStateChangeEvent::data(ExecutionContext* context, XMLHttpRequest* request)
 {
     RefPtr<TracedValue> value = TracedValue::create();