Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/svg/SVGImageElement.h

Index: third_party/WebKit/Source/core/svg/SVGImageElement.h
diff --git a/third_party/WebKit/Source/core/svg/SVGImageElement.h b/third_party/WebKit/Source/core/svg/SVGImageElement.h
index 8373158ac7548968950b9bc3ae058cfc094fb9a4..01f897df7a0ea876e5beaaa6f8dad00d8d56cbd2 100644
--- a/third_party/WebKit/Source/core/svg/SVGImageElement.h
+++ b/third_party/WebKit/Source/core/svg/SVGImageElement.h
@@ -35,7 +35,7 @@ namespace blink {
 class SVGImageElement final : public SVGGraphicsElement,
                               public SVGURIReference {
     DEFINE_WRAPPERTYPEINFO();
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SVGImageElement);
+    USING_GARBAGE_COLLECTED_MIXIN(SVGImageElement);
 public:
     DECLARE_NODE_FACTORY(SVGImageElement);
     DECLARE_VIRTUAL_TRACE();
@@ -75,13 +75,13 @@ private:
     void didMoveToNewDocument(Document& oldDocument) override;
     SVGImageLoader& imageLoader() const { return *m_imageLoader; }
 
-    RefPtrWillBeMember<SVGAnimatedLength> m_x;
-    RefPtrWillBeMember<SVGAnimatedLength> m_y;
-    RefPtrWillBeMember<SVGAnimatedLength> m_width;
-    RefPtrWillBeMember<SVGAnimatedLength> m_height;
-    RefPtrWillBeMember<SVGAnimatedPreserveAspectRatio> m_preserveAspectRatio;
+    Member<SVGAnimatedLength> m_x;
+    Member<SVGAnimatedLength> m_y;
+    Member<SVGAnimatedLength> m_width;
+    Member<SVGAnimatedLength> m_height;
+    Member<SVGAnimatedPreserveAspectRatio> m_preserveAspectRatio;
 
-    OwnPtrWillBeMember<SVGImageLoader> m_imageLoader;
+    Member<SVGImageLoader> m_imageLoader;
     bool m_needsLoaderURIUpdate : 1;
 };