Add ReferrerPolicy support to preload

third_party/WebKit/Source/platform/network/LinkHeaderTest.cpp

Index: third_party/WebKit/Source/platform/network/LinkHeaderTest.cpp
diff --git a/third_party/WebKit/Source/platform/network/LinkHeaderTest.cpp b/third_party/WebKit/Source/platform/network/LinkHeaderTest.cpp
index 4c23d31f1fc476bf79adeb54a81a096a1fbac716..5f18f3aa05094c754c5819d4499b548a3f771d8d 100644
--- a/third_party/WebKit/Source/platform/network/LinkHeaderTest.cpp
+++ b/third_party/WebKit/Source/platform/network/LinkHeaderTest.cpp
@@ -26,6 +26,7 @@ struct SingleTestCase {
   const char* rel;
   const char* as;
   const char* media;
+  const char* referrerPolicy;
 } singleTestCases[] = {
     {"</images/cat.jpg>; rel=prefetch", true, "/images/cat.jpg", "prefetch", "",
      ""},
@@ -150,6 +151,8 @@ struct SingleTestCase {
      "/images/cat.jpg", "prefetch", "", "(max-width: 5000px)"},
     {"</images/cat.jpg>; rel=prefetch;media=(max-width:5000px)", true,
      "/images/cat.jpg", "prefetch", "", "(max-width:5000px)"},
+    {"</images/cat.jpg>; rel=preload;referrerpolicy=somevalue", true,
+     "/images/cat.jpg", "preload", "", "", "somevalue"},
 };
 
 void PrintTo(const SingleTestCase& test, std::ostream* os) {