Oilpan: Remove most WillBe types from the code base

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

Index: third_party/WebKit/Source/core/css/CSSURIValue.h
diff --git a/third_party/WebKit/Source/core/css/CSSURIValue.h b/third_party/WebKit/Source/core/css/CSSURIValue.h
index 72f26843b8f5c7cc5da8b2318f9cc507cb2355e0..5119c87f06f96c41d3d45c52570510987b863ea0 100644
--- a/third_party/WebKit/Source/core/css/CSSURIValue.h
+++ b/third_party/WebKit/Source/core/css/CSSURIValue.h
@@ -13,9 +13,9 @@ namespace blink {
 
 class CSSURIValue : public CSSValue {
 public:
-    static PassRefPtrWillBeRawPtr<CSSURIValue> create(const String& str)
+    static RawPtr<CSSURIValue> create(const String& str)
     {
-        return adoptRefWillBeNoop(new CSSURIValue(str));
+        return (new CSSURIValue(str));
     }
 
     String value() const { return m_string; }