Add CSSTiming to collect aggregate PLT-level stats about CSS.

third_party/WebKit/Source/core/timing/PerformanceTiming.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/timing/PerformanceTiming.h"
 
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/V8ObjectBuilder.h"
+#include "core/css/CSSTiming.h"
 #include "core/dom/Document.h"
 #include "core/dom/DocumentParserTiming.h"
 #include "core/dom/DocumentTiming.h"
 #include "core/frame/LocalFrame.h"
 #include "core/loader/DocumentLoadTiming.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoader.h"
 #include "core/paint/PaintTiming.h"
 #include "core/timing/PerformanceBase.h"
 #include "platform/network/ResourceLoadTiming.h"
@@ skipping 350 matching lines @@
 PerformanceTiming::parseBlockedOnScriptExecutionFromDocumentWriteDuration()
     const {
   const DocumentParserTiming* timing = documentParserTiming();
   if (!timing)
     return 0;
 
   return toIntegerMilliseconds(
       timing->parserBlockedOnScriptExecutionFromDocumentWriteDuration());
 }
 
+unsigned long long PerformanceTiming::authorStyleSheetParseDurationBeforeFCP()
+    const {
+  const CSSTiming* timing = cssTiming();
+  if (!timing)
+    return 0;
+
+  return toIntegerMilliseconds(
+      timing->authorStyleSheetParseDurationBeforeFCP());
+}
+
 DocumentLoader* PerformanceTiming::documentLoader() const {
   if (!frame())
     return nullptr;
 
   return frame()->loader().documentLoader();
 }
 
 const DocumentTiming* PerformanceTiming::documentTiming() const {
   if (!frame())
     return nullptr;
 
   Document* document = frame()->document();
   if (!document)
     return nullptr;
 
   return &document->timing();
 }
 
 const PaintTiming* PerformanceTiming::paintTiming() const {
   if (!frame())
     return nullptr;
 
   Document* document = frame()->document();
   if (!document)
     return nullptr;
 
   return &PaintTiming::from(*document);
 }
 
+const CSSTiming* PerformanceTiming::cssTiming() const {
+  if (!frame())
+    return nullptr;
+
+  Document* document = frame()->document();
+  if (!document)
+    return nullptr;
+
+  return &CSSTiming::from(*document);
+}
+
 const DocumentParserTiming* PerformanceTiming::documentParserTiming() const {
   if (!frame())
     return nullptr;
 
   Document* document = frame()->document();
   if (!document)
     return nullptr;
 
   return &DocumentParserTiming::from(*document);
 }
@@ skipping 60 matching lines @@
 
   return timing->pseudoWallTimeToMonotonicTime(
       toDoubleSeconds(integerMilliseconds));
 }
 
 DEFINE_TRACE(PerformanceTiming) {
   DOMWindowProperty::trace(visitor);
 }
 
 }  // namespace blink