Add "registerable domain" support to OriginAccessEntry.

Source/platform/weborigin/OriginAccessEntryTest.cpp

Index: Source/platform/weborigin/OriginAccessEntryTest.cpp
diff --git a/Source/platform/weborigin/OriginAccessEntryTest.cpp b/Source/platform/weborigin/OriginAccessEntryTest.cpp
index 71fa779fec0e4f83124624097fc4171fef22bfd9..28da85fb04866c9f3fd467463894ee5fb3cf2b20 100644
--- a/Source/platform/weborigin/OriginAccessEntryTest.cpp
+++ b/Source/platform/weborigin/OriginAccessEntryTest.cpp
@@ -91,6 +91,9 @@ TEST(OriginAccessEntryTest, AllowSubdomainsTest)
         { "http", "example.com", "http://example.com/", OriginAccessEntry::MatchesOrigin },
         { "http", "example.com", "http://www.example.com/", OriginAccessEntry::MatchesOrigin },
         { "http", "example.com", "http://www.www.example.com/", OriginAccessEntry::MatchesOrigin },
+        { "http", "www.example.com", "http://example.com/", OriginAccessEntry::DoesNotMatchOrigin },
+        { "http", "www.example.com", "http://www.example.com/", OriginAccessEntry::MatchesOrigin },
+        { "http", "www.example.com", "http://www.www.example.com/", OriginAccessEntry::MatchesOrigin },
         { "http", "com", "http://example.com/", OriginAccessEntry::MatchesOriginButIsPublicSuffix },
         { "http", "com", "http://www.example.com/", OriginAccessEntry::MatchesOriginButIsPublicSuffix },
         { "http", "com", "http://www.www.example.com/", OriginAccessEntry::MatchesOriginButIsPublicSuffix },
@@ -117,6 +120,47 @@ TEST(OriginAccessEntryTest, AllowSubdomainsTest)
     blink::Platform::shutdown();
 }
 
+TEST(OriginAccessEntryTest, AllowRegisterableDomainsTest)
+{
+    struct TestCase {
+        const char* protocol;
+        const char* host;
+        const char* origin;
+        OriginAccessEntry::MatchResult expected;
+    } inputs[] = {
+        { "http", "example.com", "http://example.com/", OriginAccessEntry::MatchesOrigin },
+        { "http", "example.com", "http://www.example.com/", OriginAccessEntry::MatchesOrigin },
+        { "http", "example.com", "http://www.www.example.com/", OriginAccessEntry::MatchesOrigin },
+        { "http", "www.example.com", "http://example.com/", OriginAccessEntry::MatchesOrigin },
+        { "http", "www.example.com", "http://www.example.com/", OriginAccessEntry::MatchesOrigin },
+        { "http", "www.example.com", "http://www.www.example.com/", OriginAccessEntry::MatchesOrigin },
+        { "http", "com", "http://example.com/", OriginAccessEntry::MatchesOriginButIsPublicSuffix },
+        { "http", "com", "http://www.example.com/", OriginAccessEntry::MatchesOriginButIsPublicSuffix },
+        { "http", "com", "http://www.www.example.com/", OriginAccessEntry::MatchesOriginButIsPublicSuffix },
+        { "https", "example.com", "http://example.com/", OriginAccessEntry::DoesNotMatchOrigin },
+        { "https", "example.com", "http://www.example.com/", OriginAccessEntry::DoesNotMatchOrigin },
+        { "https", "example.com", "http://www.www.example.com/", OriginAccessEntry::DoesNotMatchOrigin },
+        { "http", "example.com", "http://beispiel.de/", OriginAccessEntry::DoesNotMatchOrigin },
+        { "http", "", "http://example.com/", OriginAccessEntry::MatchesOrigin },
+        { "http", "", "http://beispiel.de/", OriginAccessEntry::MatchesOrigin },
+        { "https", "", "http://beispiel.de/", OriginAccessEntry::DoesNotMatchOrigin },
+    };
+
+    // Initialize a PSL mock that whitelists any three-letter label as a TLD ('com', 'org', 'net', etc).
+    OriginAccessEntryTestPlatform platform;
+    blink::Platform::initialize(&platform);
+
+    for (const auto& test : inputs) {
+        RefPtr<SecurityOrigin> originToTest = SecurityOrigin::createFromString(test.origin);
+        OriginAccessEntry entry1(test.protocol, test.host, OriginAccessEntry::AllowRegisterableDomains);
+
+        SCOPED_TRACE(testing::Message() << "Host: " << test.host << ", Origin: " << test.origin << ", Domain: " << entry1.registerable().utf8().data());
+        EXPECT_EQ(test.expected, entry1.matchesOrigin(*originToTest));
+    }
+
+    blink::Platform::shutdown();
+}
+
 TEST(OriginAccessEntryTest, DisallowSubdomainsTest)
 {
     struct TestCase {