Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/css/SelectorChecker.h

Index: third_party/WebKit/Source/core/css/SelectorChecker.h
diff --git a/third_party/WebKit/Source/core/css/SelectorChecker.h b/third_party/WebKit/Source/core/css/SelectorChecker.h
index 2702f6345d06b882c3579f098f3dbe9fe56415d8..c48281de9faeb4874d8469457878c5de10d89c1a 100644
--- a/third_party/WebKit/Source/core/css/SelectorChecker.h
+++ b/third_party/WebKit/Source/core/css/SelectorChecker.h
@@ -53,7 +53,7 @@ public:
         Mode mode = ResolvingStyle;
         bool isUARule = false;
         ComputedStyle* elementStyle = nullptr;
-        RawPtrWillBeMember<LayoutScrollbar> scrollbar = nullptr;
+        Member<LayoutScrollbar> scrollbar = nullptr;
         ScrollbarPart scrollbarPart = NoPart;
     };
 
@@ -86,9 +86,9 @@ public:
         }
 
         const CSSSelector* selector;
-        RawPtrWillBeMember<Element> element;
-        RawPtrWillBeMember<Element> previousElement;
-        RawPtrWillBeMember<const ContainerNode> scope;
+        Member<Element> element;
+        Member<Element> previousElement;
+        Member<const ContainerNode> scope;
         VisitedMatchType visitedMatchType;
         PseudoId pseudoId;
         bool isSubSelector;
@@ -141,7 +141,7 @@ private:
     Mode m_mode;
     bool m_isUARule;
     ComputedStyle* m_elementStyle;
-    RawPtrWillBeMember<LayoutScrollbar> m_scrollbar;
+    Member<LayoutScrollbar> m_scrollbar;
     ScrollbarPart m_scrollbarPart;
 };