Migrate WTF::Vector::append() to ::push_back() [part 12 of N]

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

 // Copyright 2016 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/timing/PerformanceLongTaskTiming.h"
 
 #include "core/frame/DOMWindow.h"
 #include "core/timing/TaskAttributionTiming.h"
 
 namespace blink {
@@ skipping 24 matching lines @@
                                                      String culpritFrameSrc,
                                                      String culpritFrameId,
                                                      String culpritFrameName)
     : PerformanceEntry(name,
                        "longtask",
                        clampToMillisecond(startTime),
                        clampToMillisecond(endTime)) {
   // Only one possible name ("frame") currently.
   TaskAttributionTiming* attributionEntry = TaskAttributionTiming::create(
       "frame", culpritFrameSrc, culpritFrameId, culpritFrameName);
-  m_attribution.append(*attributionEntry);
+  m_attribution.push_back(*attributionEntry);
 }
 
 PerformanceLongTaskTiming::~PerformanceLongTaskTiming() {}
 
 TaskAttributionVector PerformanceLongTaskTiming::attribution() const {
   return m_attribution;
 }
 
 DEFINE_TRACE(PerformanceLongTaskTiming) {
   visitor->trace(m_attribution);
   PerformanceEntry::trace(visitor);
 }
 
 }  // namespace blink