Migrate WTF::Vector::append() to ::push_back() [part 3 of N]

third_party/WebKit/Source/core/css/resolver/MatchResultTest.cpp

 // Copyright 2015 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/css/resolver/MatchResult.h"
 
 #include "core/css/StylePropertySet.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
 class MatchResultTest : public ::testing::Test {
  protected:
   void SetUp() override;
 
   const StylePropertySet* propertySet(unsigned index) const {
     return propertySets[index].get();
   }
 
  private:
   PersistentHeapVector<Member<MutableStylePropertySet>, 6> propertySets;
 };
 
 void MatchResultTest::SetUp() {
   for (unsigned i = 0; i < 6; i++)
-    propertySets.append(MutableStylePropertySet::create(HTMLQuirksMode));
+    propertySets.push_back(MutableStylePropertySet::create(HTMLQuirksMode));
 }
 
 void testMatchedPropertiesRange(const MatchedPropertiesRange& range,
                                 int expectedLength,
                                 const StylePropertySet** expectedSets) {
   EXPECT_EQ(expectedLength, range.end() - range.begin());
   for (const auto& matchedProperties : range)
     EXPECT_EQ(*expectedSets++, matchedProperties.properties);
 }
 
@@ skipping 124 matching lines @@
 
   ++iter;
   EXPECT_NE(important.end(), iter);
   testMatchedPropertiesRange(*iter, 2, authorSets);
 
   ++iter;
   EXPECT_EQ(important.end(), iter);
 }
 
 }  // namespace blink