Move FirstMeaningfulPaintDetector timer to frame-specific TaskRunnerTimer

third_party/WebKit/Source/core/paint/PaintTiming.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/PaintTiming.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 102 matching lines @@
   m_fmpDetector->notifyPaint();
 }
 
 DEFINE_TRACE(PaintTiming) {
   visitor->trace(m_fmpDetector);
   Supplement<Document>::trace(visitor);
 }
 
 PaintTiming::PaintTiming(Document& document)
     : Supplement<Document>(document),
-      m_fmpDetector(new FirstMeaningfulPaintDetector(this)) {}
+      m_fmpDetector(new FirstMeaningfulPaintDetector(this, document)) {}
 
 LocalFrame* PaintTiming::frame() const {
   return supplementable()->frame();
 }
 
 void PaintTiming::notifyPaintTimingChanged() {
   if (supplementable()->loader())
     supplementable()->loader()->didChangePerformanceTiming();
 }
 
@@ skipping 15 matching lines @@
   setFirstPaint(stamp);
   m_firstContentfulPaint = stamp;
   Performance* performance = getPerformanceInstance(frame());
   if (performance)
     performance->addFirstContentfulPaintTiming(m_firstContentfulPaint);
   TRACE_EVENT_INSTANT1("blink.user_timing,rail", "firstContentfulPaint",
                        TRACE_EVENT_SCOPE_PROCESS, "frame", frame());
 }
 
 }  // namespace blink