Oilpan: fix build after r183788.

TBR=oilpan-reviews,haraken
BUG=355467
NOTRY=true

Review URL: https://codereview.chromium.org/660723003

git-svn-id: svn://svn.chromium.org/blink/trunk@183797 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/frame/SubresourceIntegrityTest.cpp

@@ -126,8 +126,8 @@ protected:
     RefPtr<SecurityOrigin> secureOrigin;
     RefPtr<SecurityOrigin> insecureOrigin;
 
-    RefPtrWillBeRawPtr<Document> document;
-    RefPtrWillBeRawPtr<HTMLScriptElement> scriptElement;
+    RefPtrWillBePersistent<Document> document;
+    RefPtrWillBePersistent<HTMLScriptElement> scriptElement;
 };
 
 TEST_F(SubresourceIntegrityTest, ParseAlgorithm)