Migrate WTF::Vector::append() to ::push_back() [part 12 of N]

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 d8781a2993c39d8cea7c4792e7c6828c495c4660..2b27368a280f7bc8ff1e3e7036892457507f99fb 100644
--- a/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
@@ -1032,7 +1032,7 @@ PassRefPtr<ShadowList> StyleBuilderConverter::convertShadowList(
 
   ShadowDataVector shadows;
   for (const auto& item : toCSSValueList(value))
-    shadows.append(convertShadow(state, *item));
+    shadows.push_back(convertShadow(state, *item));
 
   return ShadowList::adopt(shadows);
 }