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

third_party/WebKit/Source/modules/webusb/USBConfiguration.cpp

 // Copyright 2015 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/webusb/USBConfiguration.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "device/usb/public/interfaces/device.mojom-blink.h"
 #include "modules/webusb/USBDevice.h"
 #include "modules/webusb/USBInterface.h"
@@ skipping 32 matching lines @@
   return m_configurationIndex;
 }
 
 const device::usb::blink::ConfigurationInfo& USBConfiguration::info() const {
   return *m_device->info().configurations[m_configurationIndex];
 }
 
 HeapVector<Member<USBInterface>> USBConfiguration::interfaces() const {
   HeapVector<Member<USBInterface>> interfaces;
   for (size_t i = 0; i < info().interfaces.size(); ++i)
-    interfaces.append(USBInterface::create(this, i));
+    interfaces.push_back(USBInterface::create(this, i));
   return interfaces;
 }
 
 DEFINE_TRACE(USBConfiguration) {
   visitor->trace(m_device);
 }
 
 }  // namespace blink