Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/layout/LayoutView.h

Index: third_party/WebKit/Source/core/layout/LayoutView.h
diff --git a/third_party/WebKit/Source/core/layout/LayoutView.h b/third_party/WebKit/Source/core/layout/LayoutView.h
index 9cf6840ed47c37a80afb3c1a221c527f8a8de45b..7a028caa0e32e96ac02ba4fd302db39fd587a574 100644
--- a/third_party/WebKit/Source/core/layout/LayoutView.h
+++ b/third_party/WebKit/Source/core/layout/LayoutView.h
@@ -229,7 +229,7 @@ private:
     int viewLogicalWidthForBoxSizing() const;
     int viewLogicalHeightForBoxSizing() const;
 
-    RawPtrWillBeUntracedMember<FrameView> m_frameView;
+    UntracedMember<FrameView> m_frameView;
 
     // The current selection represented as 2 boundaries.
     // Selection boundaries are represented in LayoutView by a tuple
@@ -271,7 +271,7 @@ private:
 
     unsigned m_hitTestCount;
     unsigned m_hitTestCacheHits;
-    OwnPtrWillBePersistent<HitTestCache> m_hitTestCache;
+    Persistent<HitTestCache> m_hitTestCache;
 
     Vector<LayoutMedia*> m_mediaForPositionNotification;
 };