Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/svg/graphics/SVGImage.h

 /*
  * Copyright (C) 2006 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 98 matching lines @@
 
     SVGImage(ImageObserver*);
     void draw(SkCanvas*, const SkPaint&, const FloatRect& fromRect, const FloatRect& toRect, RespectImageOrientationEnum, ImageClampingMode) override;
     void drawForContainer(SkCanvas*, const SkPaint&, const FloatSize, float, const FloatRect&, const FloatRect&, const KURL&);
     void drawPatternForContainer(GraphicsContext&, const FloatSize, float, const FloatRect&, const FloatSize&, const FloatPoint&,
         SkXfermode::Mode, const FloatRect&, const FloatSize& repeatSpacing, const KURL&);
     PassRefPtr<SkImage> imageForCurrentFrameForContainer(const KURL&, const FloatSize& containerSize);
     void drawInternal(SkCanvas*, const SkPaint&, const FloatRect& fromRect, const FloatRect& toRect, RespectImageOrientationEnum,
         ImageClampingMode, const KURL&);
 
-    OwnPtrWillBePersistent<SVGImageChromeClient> m_chromeClient;
-    OwnPtrWillBePersistent<Page> m_page;
+    Persistent<SVGImageChromeClient> m_chromeClient;
+    Persistent<Page> m_page;
 
     // When an SVG image has no intrinsic size the size depends on the
     // default object size, which in turn depends on the
     // container. SVGImage may belong to multiple containers so the
     // final image size can't be known in
     // SVGImage. SVGImageForContainer carried the final image size,
     // also called concrete object size.
     IntSize m_intrinsicSize;
 };
 
 DEFINE_IMAGE_TYPE_CASTS(SVGImage);
 
 class ImageObserverDisabler {
     STACK_ALLOCATED();
     WTF_MAKE_NONCOPYABLE(ImageObserverDisabler);
 public:
     ImageObserverDisabler(Image* image)
         : m_image(image)
     {
         m_observer = m_image->getImageObserver();
         m_image->setImageObserver(0);
     }
 
     ~ImageObserverDisabler()
     {
         m_image->setImageObserver(m_observer);
     }
 private:
     Image* m_image;
-    RawPtrWillBeMember<ImageObserver> m_observer;
+    Member<ImageObserver> m_observer;
 };
 
 } // namespace blink
 
 #endif // SVGImage_h