Prerender: Test that prefetch flags are set correctly on redirect.

chrome/browser/prerender/prerender_test_utils.h

Index: chrome/browser/prerender/prerender_test_utils.h
diff --git a/chrome/browser/prerender/prerender_test_utils.h b/chrome/browser/prerender/prerender_test_utils.h
index 741d93f6a6e15531e228165dc03bad8cf607decc..2b586aba6e4b9c2b9e2d30984daa3069be12beed 100644
--- a/chrome/browser/prerender/prerender_test_utils.h
+++ b/chrome/browser/prerender/prerender_test_utils.h
@@ -375,6 +375,12 @@ void CreateCountingInterceptorOnIO(
     const base::FilePath& file,
     const base::WeakPtr<RequestCounter>& counter);
 
+// Checks that |url| has been requested with net::LOAD_PREFETCH. Pings |counter|
+// after the flag is checked.
+void CreatePrefetchOnlyInterceptorOnIO(
+    const GURL& url,
+    const base::WeakPtr<RequestCounter>& counter);
+
 // Makes |url| respond to requests with the contents of |file|.
 void CreateMockInterceptorOnIO(const GURL& url, const base::FilePath& file);