Oilpan: Remove most WillBe types from the code base

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

Index: third_party/WebKit/Source/core/svg/SVGZoomEvent.h
diff --git a/third_party/WebKit/Source/core/svg/SVGZoomEvent.h b/third_party/WebKit/Source/core/svg/SVGZoomEvent.h
index 134da5ec8ddfa3508ed13d2e2196c7a6ae552597..5528b722ba7171156834cda90d5200776c7b7fab 100644
--- a/third_party/WebKit/Source/core/svg/SVGZoomEvent.h
+++ b/third_party/WebKit/Source/core/svg/SVGZoomEvent.h
@@ -32,21 +32,21 @@ namespace blink {
 class SVGZoomEvent final : public UIEvent {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static PassRefPtrWillBeRawPtr<SVGZoomEvent> create()
+    static RawPtr<SVGZoomEvent> create()
     {
         return adoptRefWillBeNoop(new SVGZoomEvent);
     }
 
     // 'SVGZoomEvent' functions
-    PassRefPtrWillBeRawPtr<SVGRectTearOff> zoomRectScreen() const;
+    RawPtr<SVGRectTearOff> zoomRectScreen() const;
 
     float previousScale() const;
 
-    PassRefPtrWillBeRawPtr<SVGPointTearOff> previousTranslate() const;
+    RawPtr<SVGPointTearOff> previousTranslate() const;
 
     float newScale() const;
 
-    PassRefPtrWillBeRawPtr<SVGPointTearOff> newTranslate() const;
+    RawPtr<SVGPointTearOff> newTranslate() const;
 
     const AtomicString& interfaceName() const override;