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

third_party/WebKit/Source/core/css/FontFaceSet.cpp

Index: third_party/WebKit/Source/core/css/FontFaceSet.cpp
diff --git a/third_party/WebKit/Source/core/css/FontFaceSet.cpp b/third_party/WebKit/Source/core/css/FontFaceSet.cpp
index f50b821f6b9fad50b507d5c460851f06e8e8bb67..0be1e5fce9b81441a5415cbc8c0afca1ffc54465 100644
--- a/third_party/WebKit/Source/core/css/FontFaceSet.cpp
+++ b/third_party/WebKit/Source/core/css/FontFaceSet.cpp
@@ -206,13 +206,13 @@ void FontFaceSet::beginFontLoading(FontFace* fontFace) {
 
 void FontFaceSet::notifyLoaded(FontFace* fontFace) {
   m_histogram.updateStatus(fontFace);
-  m_loadedFonts.append(fontFace);
+  m_loadedFonts.push_back(fontFace);
   removeFromLoadingFonts(fontFace);
 }
 
 void FontFaceSet::notifyError(FontFace* fontFace) {
   m_histogram.updateStatus(fontFace);
-  m_failedFonts.append(fontFace);
+  m_failedFonts.push_back(fontFace);
   removeFromLoadingFonts(fontFace);
 }
 
@@ -536,9 +536,9 @@ FontFaceSetIterable::IterationSource* FontFaceSet::startIteration(
     fontFaces.reserveInitialCapacity(cssConnectedFaces.size() +
                                      m_nonCSSConnectedFaces.size());
     for (const auto& fontFace : cssConnectedFaces)
-      fontFaces.append(fontFace);
+      fontFaces.push_back(fontFace);
     for (const auto& fontFace : m_nonCSSConnectedFaces)
-      fontFaces.append(fontFace);
+      fontFaces.push_back(fontFace);
   }
   return new IterationSource(fontFaces);
 }