Migrate WTF::Vector::append() to ::push_back() [part 13 of N]

third_party/WebKit/Source/modules/indexeddb/IDBObserverChanges.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 "modules/indexeddb/IDBObserverChanges.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/modules/v8/ToV8ForModules.h"
@@ skipping 33 matching lines @@
 }
 
 void IDBObserverChanges::extractChanges(
     const WebVector<WebIDBObservation>& observations,
     const WebVector<int32_t>& observationIndex) {
   // TODO(dmurph): Avoid getting and setting repeated times.
   for (const auto& idx : observationIndex)
     m_records
         .add(observations[idx].objectStoreId,
              HeapVector<Member<IDBObservation>>())
-        .storedValue->value.append(IDBObservation::create(observations[idx]));
+        .storedValue->value.push_back(
+            IDBObservation::create(observations[idx]));
 }
 
 DEFINE_TRACE(IDBObserverChanges) {
   visitor->trace(m_database);
   visitor->trace(m_transaction);
   visitor->trace(m_records);
 }
 
 }  // namespace blink