Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.h

Index: third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.h b/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.h
index eb38835c4c9b085469eaedd10bca3cd7bedc0a1e..2901c9f4267bff795e3ed0d65c5f425736a29566 100644
--- a/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.h
@@ -39,7 +39,7 @@ class LayoutPart;
 class Widget;
 
 class CORE_EXPORT HTMLFrameOwnerElement : public HTMLElement, public FrameOwner {
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(HTMLFrameOwnerElement);
+    USING_GARBAGE_COLLECTED_MIXIN(HTMLFrameOwnerElement);
 public:
     ~HTMLFrameOwnerElement() override;
 
@@ -62,8 +62,8 @@ public:
     virtual bool loadedNonEmptyDocument() const { return false; }
     virtual void didLoadNonEmptyDocument() { }
 
-    void setWidget(PassRefPtrWillBeRawPtr<Widget>);
-    PassRefPtrWillBeRawPtr<Widget> releaseWidget();
+    void setWidget(RawPtr<Widget>);
+    RawPtr<Widget> releaseWidget();
     Widget* ownedWidget() const;
 
     class UpdateSuspendScope {
@@ -99,8 +99,8 @@ private:
 
     virtual ReferrerPolicy referrerPolicyAttribute() { return ReferrerPolicyDefault; }
 
-    RawPtrWillBeMember<Frame> m_contentFrame;
-    RefPtrWillBeMember<Widget> m_widget;
+    Member<Frame> m_contentFrame;
+    Member<Widget> m_widget;
     SandboxFlags m_sandboxFlags;
 };
 
@@ -136,9 +136,9 @@ public:
     }
 
 private:
-    CORE_EXPORT static WillBeHeapHashCountedSet<RawPtrWillBeMember<Node>>& disabledSubtreeRoots();
+    CORE_EXPORT static HeapHashCountedSet<Member<Node>>& disabledSubtreeRoots();
 
-    RawPtrWillBeMember<Node> m_root;
+    Member<Node> m_root;
 };
 
 DEFINE_TYPE_CASTS(HTMLFrameOwnerElement, FrameOwner, owner, owner->isLocal(), owner.isLocal());