Remove duplicate domHighResTimestamp conversion in NavigationTiming

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

 /*
  * Copyright (C) 2012 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 37 matching lines @@
 PerformanceEntry::~PerformanceEntry() {}
 
 String PerformanceEntry::name() const {
   return m_name;
 }
 
 String PerformanceEntry::entryType() const {
   return m_entryType;
 }
 
-double PerformanceEntry::startTime() const {
+DOMHighResTimeStamp PerformanceEntry::startTime() const {
   return m_startTime;
 }
 
-double PerformanceEntry::duration() const {
+DOMHighResTimeStamp PerformanceEntry::duration() const {
   return m_duration;
 }
 
 PerformanceEntry::EntryType PerformanceEntry::toEntryTypeEnum(
     const String& entryType) {
   if (entryType == "composite")
     return Composite;
   if (entryType == "longtask")
     return LongTask;
   if (entryType == "mark")
@@ skipping 18 matching lines @@
 }
 
 void PerformanceEntry::buildJSONValue(V8ObjectBuilder& builder) const {
   builder.addString("name", name());
   builder.addString("entryType", entryType());
   builder.addNumber("startTime", startTime());
   builder.addNumber("duration", duration());
 }
 
 }  // namespace blink