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

third_party/WebKit/Source/core/dom/SpaceSplitString.cpp

Index: third_party/WebKit/Source/core/dom/SpaceSplitString.cpp
diff --git a/third_party/WebKit/Source/core/dom/SpaceSplitString.cpp b/third_party/WebKit/Source/core/dom/SpaceSplitString.cpp
index 66abcbc45d5d37f2003c950c5391b0375c277714..6bf70dd6dcc121ddd1d6f9e1a6acd086a723eff0 100644
--- a/third_party/WebKit/Source/core/dom/SpaceSplitString.cpp
+++ b/third_party/WebKit/Source/core/dom/SpaceSplitString.cpp
@@ -64,7 +64,7 @@ inline void SpaceSplitString::Data::createVector(
     while (end < length && isNotHTMLSpace<CharacterType>(characters[end]))
       ++end;
 
-    m_vector.append(AtomicString(characters + start, end - start));
+    m_vector.push_back(AtomicString(characters + start, end - start));
 
     start = end + 1;
   }
@@ -103,7 +103,7 @@ bool SpaceSplitString::Data::containsAll(Data& other) {
 void SpaceSplitString::Data::add(const AtomicString& string) {
   DCHECK(hasOneRef());
   DCHECK(!contains(string));
-  m_vector.append(string);
+  m_vector.push_back(string);
 }
 
 void SpaceSplitString::Data::remove(unsigned index) {