Oilpan: Remove most WillBe types from the code base

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

Index: third_party/WebKit/Source/core/css/CSSInheritedValue.h
diff --git a/third_party/WebKit/Source/core/css/CSSInheritedValue.h b/third_party/WebKit/Source/core/css/CSSInheritedValue.h
index 9bdc467f4d7341d8f515af91940378e00bd7a144..61ead5953ca9e63f838275d078147ae488bfdcc5 100644
--- a/third_party/WebKit/Source/core/css/CSSInheritedValue.h
+++ b/third_party/WebKit/Source/core/css/CSSInheritedValue.h
@@ -28,9 +28,9 @@ namespace blink {
 
 class CSSInheritedValue : public CSSValue {
 public:
-    static PassRefPtrWillBeRawPtr<CSSInheritedValue> create()
+    static RawPtr<CSSInheritedValue> create()
     {
-        return adoptRefWillBeNoop(new CSSInheritedValue);
+        return (new CSSInheritedValue);
     }
 
     String customCSSText() const;