Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/paint/PaintTiming.h

 // 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.
 
 #ifndef PaintTiming_h
 #define PaintTiming_h
 
 #include "core/dom/Document.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class LocalFrame;
 
-class PaintTiming final : public NoBaseWillBeGarbageCollectedFinalized<PaintTiming>, public WillBeHeapSupplement<Document> {
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(PaintTiming);
+class PaintTiming final : public GarbageCollectedFinalized<PaintTiming>, public HeapSupplement<Document> {
+    USING_GARBAGE_COLLECTED_MIXIN(PaintTiming);
 public:
     virtual ~PaintTiming() { }
 
     static PaintTiming& from(Document&);
 
     void markFirstPaint();
     void markFirstTextPaint();
     void markFirstImagePaint();
     void markFirstContentfulPaint();
 
     // These return monotonically-increasing seconds.
     double firstPaint() const { return m_firstPaint; }
     double firstTextPaint() const { return m_firstTextPaint; }
     double firstImagePaint() const { return m_firstImagePaint; }
     double firstContentfulPaint() const { return m_firstContentfulPaint; }
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     explicit PaintTiming(Document&);
     LocalFrame* frame() const;
     void notifyPaintTimingChanged();
 
     double m_firstPaint = 0.0;
     double m_firstTextPaint = 0.0;
     double m_firstImagePaint = 0.0;
     double m_firstContentfulPaint = 0.0;
 
-    RawPtrWillBeMember<Document> m_document;
+    Member<Document> m_document;
 };
 
 } // namespace blink
 
 #endif