HeapSupplements are now just Supplements.

third_party/WebKit/Source/core/paint/PaintTiming.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/paint/PaintTiming.h"
 
 #include "core/dom/Document.h"
 #include "core/loader/DocumentLoader.h"
 #include "platform/TraceEvent.h"
 #include "wtf/RawPtr.h"
 
 namespace blink {
 
 static const char kSupplementName[] = "PaintTiming";
 
 PaintTiming& PaintTiming::from(Document& document)
 {
-    PaintTiming* timing = static_cast<PaintTiming*>(HeapSupplement<Document>::from(document, kSupplementName));
+    PaintTiming* timing = static_cast<PaintTiming*>(Supplement<Document>::from(document, kSupplementName));
     if (!timing) {
         timing = new PaintTiming(document);
-        HeapSupplement<Document>::provideTo(document, kSupplementName, timing);
+        Supplement<Document>::provideTo(document, kSupplementName, timing);
     }
     return *timing;
 }
 
 void PaintTiming::markFirstPaint()
 {
     // Test that m_firstPaint is non-zero here, as well as in setFirstPaint, so
     // we avoid invoking monotonicallyIncreasingTime() on every call to
     // markFirstPaint().
     if (m_firstPaint != 0.0)
@@ skipping 66 matching lines @@
 void PaintTiming::setFirstContentfulPaint(double stamp)
 {
     if (m_firstContentfulPaint != 0.0)
         return;
     setFirstPaint(stamp);
     m_firstContentfulPaint = stamp;
     TRACE_EVENT_INSTANT1("blink.user_timing", "firstContentfulPaint", TRACE_EVENT_SCOPE_PROCESS, "frame", frame());
 }
 
 } // namespace blink