Migrate WTF::RefVector::append() to ::push_back()

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

Index: third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
diff --git a/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp b/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
index 15f174cd775a5dcd0ea0b62b2a142d36f899b858..f698a689c10f0fe0ce11c4c5b4ce4d375787662c 100644
--- a/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
@@ -1156,7 +1156,7 @@ PassRefPtr<SVGDashArray> StyleBuilderConverter::convertStrokeDasharray(
   RefPtr<SVGDashArray> array = SVGDashArray::create();
   size_t length = dashes.length();
   for (size_t i = 0; i < length; ++i) {
-    array->append(convertLength(state, toCSSPrimitiveValue(dashes.item(i))));
+    array->push_back(convertLength(state, toCSSPrimitiveValue(dashes.item(i))));
   }
 
   return array.release();