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

third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights
  * reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@gmail.com>
@@ skipping 2036 matching lines @@
     return;
   scrollableArea.setNeedsRelayout(true);
   scrollableArea.setHadHorizontalScrollbarBeforeRelayout(
       hadHorizontalScrollbar);
   scrollableArea.setHadVerticalScrollbarBeforeRelayout(hadVerticalScrollbar);
 
   s_relayoutNeeded = true;
   if (!s_needsRelayout)
     s_needsRelayout =
         new PersistentHeapVector<Member<PaintLayerScrollableArea>>();
-  s_needsRelayout->append(&scrollableArea);
+  s_needsRelayout->push_back(&scrollableArea);
 }
 
 void PaintLayerScrollableArea::PreventRelayoutScope::resetRelayoutNeeded() {
   DCHECK_EQ(s_count, 0);
   DCHECK(!s_needsRelayout || s_needsRelayout->isEmpty());
   s_relayoutNeeded = false;
 }
 
 int PaintLayerScrollableArea::FreezeScrollbarsScope::s_count = 0;
 
@@ skipping 13 matching lines @@
 PaintLayerScrollableArea::DelayScrollOffsetClampScope::
     ~DelayScrollOffsetClampScope() {
   if (--s_count == 0)
     DelayScrollOffsetClampScope::clampScrollableAreas();
 }
 
 void PaintLayerScrollableArea::DelayScrollOffsetClampScope::setNeedsClamp(
     PaintLayerScrollableArea* scrollableArea) {
   if (!scrollableArea->needsScrollOffsetClamp()) {
     scrollableArea->setNeedsScrollOffsetClamp(true);
-    s_needsClamp->append(scrollableArea);
+    s_needsClamp->push_back(scrollableArea);
   }
 }
 
 void PaintLayerScrollableArea::DelayScrollOffsetClampScope::
     clampScrollableAreas() {
   for (auto& scrollableArea : *s_needsClamp)
     scrollableArea->clampScrollOffsetAfterOverflowChange();
   delete s_needsClamp;
   s_needsClamp = nullptr;
 }
 
 }  // namespace blink