Merge logic for SameDomainOrHost for GURLs and Origins

url/url_util.h

Index: url/url_util.h
diff --git a/url/url_util.h b/url/url_util.h
index 724ce956a7ffa95010218717db15342f0d0d4dd5..e272e436d0824249ffaf02b9dd0d4ac4e350adb3 100644
--- a/url/url_util.h
+++ b/url/url_util.h
@@ -146,6 +146,12 @@ URL_EXPORT bool GetStandardSchemeType(const char* spec,
 URL_EXPORT bool DomainIs(base::StringPiece canonicalized_host,
                          base::StringPiece lower_ascii_domain);
 
+// Hosts -----------------------------------------------------------------------

[brettw, 2016/12/15 18:45:32]

I'm not sure these section headers are helping much if there's only one thing in
each. I think this and "DomainIs" could be classified as "Hosts" so maybe just
rename that header and have both functions udner it?

[Charlie Harrison, 2016/12/16 22:48:32]

Done.

+
+// Returns true if the hostname is an IP address. Note: this function isn't very
+// cheap, as it must re-parse the host to verify.
+URL_EXPORT bool HostIsIPAddress(base::StringPiece host);
+
 // URL library wrappers --------------------------------------------------------
 
 // Parses the given spec according to the extracted scheme type. Normal users