Migrate WTF::Vector::append() to ::push_back() [part 4 of N]

third_party/WebKit/Source/core/dom/NodeRareData.h

 /*
  * Copyright (C) 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 David Smith <catfish.man@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 42 matching lines @@
     m_transientRegistry.add(
         TraceWrapperMember<MutationObserverRegistration>(this, registration));
   }
 
   void removeTransientRegistration(MutationObserverRegistration* registration) {
     DCHECK(m_transientRegistry.contains(registration));
     m_transientRegistry.remove(registration);
   }
 
   void addRegistration(MutationObserverRegistration* registration) {
-    m_registry.append(
+    m_registry.push_back(
         TraceWrapperMember<MutationObserverRegistration>(this, registration));
   }
 
   void removeRegistration(MutationObserverRegistration* registration) {
     DCHECK(m_registry.contains(registration));
     m_registry.remove(m_registry.find(registration));
   }
 
   DEFINE_INLINE_TRACE() {
     visitor->trace(m_registry);
@@ skipping 102 matching lines @@
   unsigned m_elementFlags : NumberOfElementFlags;
   unsigned m_restyleFlags : NumberOfDynamicRestyleFlags;
 
  protected:
   unsigned m_isElementRareData : 1;
 };
 
 }  // namespace blink
 
 #endif  // NodeRareData_h