Migrate WTF::Vector::append() to ::push_back() [part 15 of N]

third_party/WebKit/Source/web/tests/RootScrollerTest.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/dom/ClientRect.h"
 #include "core/frame/BrowserControls.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/RootFrameViewport.h"
 #include "core/frame/VisualViewport.h"
@@ skipping 182 matching lines @@
   Document* document = mainFrame()->document();
   Element* iframe = document->createElement("iframe");
 
   EXPECT_EQ(mainFrame()->document(),
             effectiveRootScroller(mainFrame()->document()));
 
   // Replace the documentElement with the iframe. The effectiveRootScroller
   // should remain the same.
   NonThrowableExceptionState nonThrow;
   HeapVector<NodeOrString> nodes;
-  nodes.append(NodeOrString::fromNode(iframe));
+  nodes.push_back(NodeOrString::fromNode(iframe));
   document->documentElement()->replaceWith(nodes, nonThrow);
 
   mainFrameView()->updateAllLifecyclePhases();
 
   EXPECT_EQ(mainFrame()->document(),
             effectiveRootScroller(mainFrame()->document()));
 }
 
 class OverscrollTestWebViewClient : public FrameTestHelpers::TestWebViewClient {
  public:
@@ skipping 1031 matching lines @@
   // FrameView without a layout.
   iframe->remove();
 
   EXPECT_EQ(mainFrameView()->layoutViewportScrollableArea(),
             &mainFrameView()->getRootFrameViewport()->layoutViewport());
 }
 
 }  // namespace
 
 }  // namespace blink