Add basic Referrer-Policy support for Documents

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

Index: third_party/WebKit/Source/platform/network/HTTPParsersTest.cpp
diff --git a/third_party/WebKit/Source/platform/network/HTTPParsersTest.cpp b/third_party/WebKit/Source/platform/network/HTTPParsersTest.cpp
index 3420d2ba30d0b45778d15919fbe44070f532bd69..94edc3dc27a5ff2edf552bf735cec0d79d7c07cd 100644
--- a/third_party/WebKit/Source/platform/network/HTTPParsersTest.cpp
+++ b/third_party/WebKit/Source/platform/network/HTTPParsersTest.cpp
@@ -283,4 +283,22 @@ TEST(HTTPParsersTest, SuboriginParseInvalidPolicy)
     expectParsePolicyFail("Valid policy and then policy that is a single quote", "foobar 'unsafe-postmessage-send' '");
 }
 
+TEST(HTTPParsersTest, ParseReferrerPolicy)
+{
+    EXPECT_EQ(ReferrerPolicyDefault, parseReferrerPolicyHeader(""));
+
+    // Test that invalid policy values are ignored.
+    EXPECT_EQ(ReferrerPolicyDefault, parseReferrerPolicyHeader("not-a-valid-policy"));
+    EXPECT_EQ(ReferrerPolicyDefault, parseReferrerPolicyHeader("not-a-valid-policy,also-not-a-valid-policy"));
+    EXPECT_EQ(ReferrerPolicyAlways, parseReferrerPolicyHeader("not-a-valid-policy,unsafe-url"));
+    EXPECT_EQ(ReferrerPolicyAlways, parseReferrerPolicyHeader("unsafe-url,not-a-valid-policy"));
+
+    // Test parsing each of the policy values.
+    EXPECT_EQ(ReferrerPolicyAlways, parseReferrerPolicyHeader("unsafe-url"));
+    EXPECT_EQ(ReferrerPolicyNoReferrerWhenDowngrade, parseReferrerPolicyHeader("no-referrer-when-downgrade"));
+    EXPECT_EQ(ReferrerPolicyNever, parseReferrerPolicyHeader("no-referrer"));
+    EXPECT_EQ(ReferrerPolicyOrigin, parseReferrerPolicyHeader("origin"));
+    EXPECT_EQ(ReferrerPolicyOriginWhenCrossOrigin, parseReferrerPolicyHeader("origin-when-cross-origin"));
+}
+
 } // namespace blink