HeapSupplements are now just Supplements.

third_party/WebKit/Source/core/timing/DOMWindowPerformance.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 "core/timing/DOMWindowPerformance.h"
 
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "core/timing/Performance.h"
 
 namespace blink {
 
 DOMWindowPerformance::DOMWindowPerformance(LocalDOMWindow& window)
     : DOMWindowProperty(window.frame())
     , m_window(&window)
 {
 }
 
 DEFINE_TRACE(DOMWindowPerformance)
 {
     visitor->trace(m_window);
     visitor->trace(m_performance);
-    HeapSupplement<LocalDOMWindow>::trace(visitor);
+    Supplement<LocalDOMWindow>::trace(visitor);
     DOMWindowProperty::trace(visitor);
 }
 
 // static
 const char* DOMWindowPerformance::supplementName()
 {
     return "DOMWindowPerformance";
 }
 
 // static
 DOMWindowPerformance& DOMWindowPerformance::from(LocalDOMWindow& window)
 {
-    DOMWindowPerformance* supplement = static_cast<DOMWindowPerformance*>(HeapSupplement<LocalDOMWindow>::from(window, supplementName()));
+    DOMWindowPerformance* supplement = static_cast<DOMWindowPerformance*>(Supplement<LocalDOMWindow>::from(window, supplementName()));
     if (!supplement) {
         supplement = new DOMWindowPerformance(window);
         provideTo(window, supplementName(), supplement);
     }
     return *supplement;
 }
 
 // static
 Performance* DOMWindowPerformance::performance(DOMWindow& window)
 {
     return from(toLocalDOMWindow(window)).performance();
 }
 
 Performance* DOMWindowPerformance::performance()
 {
     if (!m_performance)
         m_performance = Performance::create(m_window->frame());
     return m_performance.get();
 }
 
 } // namespace blink