Migrate WTF::Vector::append() to ::push_back() [part 13 of N]

third_party/WebKit/Source/modules/vr/VRDisplay.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 "modules/vr/VRDisplay.h"
 
 #include "core/css/StylePropertySet.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/DocumentUserGestureToken.h"
 #include "core/dom/FrameRequestCallback.h"
@@ skipping 562 matching lines @@
     rightBounds->height = 1.0f;
   }
 
   m_display->UpdateLayerBounds(std::move(leftBounds), std::move(rightBounds));
 }
 
 HeapVector<VRLayer> VRDisplay::getLayers() {
   HeapVector<VRLayer> layers;
 
   if (m_isPresenting) {
-    layers.append(m_layer);
+    layers.push_back(m_layer);
   }
 
   return layers;
 }
 
 void VRDisplay::submitFrame() {
   if (!m_display)
     return;
 
   Document* doc = this->document();
@@ skipping 172 matching lines @@
   visitor->trace(m_stageParameters);
   visitor->trace(m_eyeParametersLeft);
   visitor->trace(m_eyeParametersRight);
   visitor->trace(m_layer);
   visitor->trace(m_renderingContext);
   visitor->trace(m_scriptedAnimationController);
   visitor->trace(m_pendingPresentResolvers);
 }
 
 }  // namespace blink