Merge from Chromium at DEPS revision 260458

This commit was generated by merge_to_master.py.

Change-Id: I01166d4072567f174b02707d7a0850cb3fe1fd8a
diff --git a/Source/core/css/DOMWindowCSS.cpp b/Source/core/css/DOMWindowCSS.cpp
index ff5013d..d0edcca 100644
--- a/Source/core/css/DOMWindowCSS.cpp
+++ b/Source/core/css/DOMWindowCSS.cpp
@@ -37,9 +37,9 @@
 
 namespace WebCore {
 
-PassRefPtr<DOMWindowCSS> DOMWindowCSS::create()
+PassRefPtrWillBeRawPtr<DOMWindowCSS> DOMWindowCSS::create()
 {
-    return adoptRef(new DOMWindowCSS());
+    return adoptRefWillBeNoop(new DOMWindowCSS());
 }
 
 static String valueWithoutImportant(const String& value)