Replace DOMWindowProperty in core/timing/ with ContextClient

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 41 matching lines @@
   ASSERT(seconds >= 0);
   double clampedSeconds = PerformanceBase::clampTimeResolution(seconds);
   return static_cast<unsigned long long>(clampedSeconds * 1000.0);
 }
 
 static double toDoubleSeconds(unsigned long long integerMilliseconds) {
   return integerMilliseconds / 1000.0;
 }
 
 PerformanceTiming::PerformanceTiming(LocalFrame* frame)
-    : DOMWindowProperty(frame) {}
+    : ContextClient(frame) {}
 
 unsigned long long PerformanceTiming::navigationStart() const {
   DocumentLoadTiming* timing = documentLoadTiming();
   if (!timing)
     return 0;
 
   return monotonicTimeToIntegerMilliseconds(timing->navigationStart());
 }
 
 unsigned long long PerformanceTiming::unloadEventStart() const {
@@ skipping 458 matching lines @@
     unsigned long long integerMilliseconds) const {
   const DocumentLoadTiming* timing = documentLoadTiming();
   if (!timing)
     return 0;
 
   return timing->pseudoWallTimeToMonotonicTime(
       toDoubleSeconds(integerMilliseconds));
 }
 
 DEFINE_TRACE(PerformanceTiming) {
-  DOMWindowProperty::trace(visitor);
+  ContextClient::trace(visitor);
 }
 
 }  // namespace blink