HeapSupplements are now just Supplements.

third_party/WebKit/Source/modules/storage/DOMWindowStorageController.cpp

 // Copyright 2014 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/storage/DOMWindowStorageController.h"
 
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/page/Page.h"
 #include "modules/storage/DOMWindowStorage.h"
 
 namespace blink {
 
 DOMWindowStorageController::DOMWindowStorageController(Document& document)
     : DOMWindowLifecycleObserver(document.domWindow())
     , m_document(document)
 {
 }
 
 DEFINE_TRACE(DOMWindowStorageController)
 {
     visitor->trace(m_document);
-    HeapSupplement<Document>::trace(visitor);
+    Supplement<Document>::trace(visitor);
     DOMWindowLifecycleObserver::trace(visitor);
 }
 
 // static
 const char* DOMWindowStorageController::supplementName()
 {
     return "DOMWindowStorageController";
 }
 
 // static
 DOMWindowStorageController& DOMWindowStorageController::from(Document& document)
 {
-    DOMWindowStorageController* controller = static_cast<DOMWindowStorageController*>(HeapSupplement<Document>::from(document, supplementName()));
+    DOMWindowStorageController* controller = static_cast<DOMWindowStorageController*>(Supplement<Document>::from(document, supplementName()));
     if (!controller) {
         controller = new DOMWindowStorageController(document);
-        HeapSupplement<Document>::provideTo(document, supplementName(), controller);
+        Supplement<Document>::provideTo(document, supplementName(), controller);
     }
     return *controller;
 }
 
 void DOMWindowStorageController::didAddEventListener(LocalDOMWindow* window, const AtomicString& eventType)
 {
     if (eventType == EventTypeNames::storage) {
         // Creating these blink::Storage objects informs the system that we'd like to receive
         // notifications about storage events that might be triggered in other processes. Rather
         // than subscribe to these notifications explicitly, we subscribe to them implicitly to
         // simplify the work done by the system.
         DOMWindowStorage::from(*window).localStorage(IGNORE_EXCEPTION);
         DOMWindowStorage::from(*window).sessionStorage(IGNORE_EXCEPTION);
     }
 }
 
 } // namespace blink