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..e9da9b21137edd6f70108847920f17206d5bc769 100644
--- a/url/url_util.h
+++ b/url/url_util.h
@@ -133,7 +133,7 @@ URL_EXPORT bool GetStandardSchemeType(const char* spec,
                                       const Component& scheme,
                                       SchemeType* type);
 
-// Domains ---------------------------------------------------------------------
+// Hosts  ----------------------------------------------------------------------
 
 // Returns true if the |canonicalized_host| matches or is in the same domain as
 // the given |lower_ascii_domain| string. For example, if the canonicalized
@@ -146,6 +146,10 @@ URL_EXPORT bool GetStandardSchemeType(const char* spec,
 URL_EXPORT bool DomainIs(base::StringPiece canonicalized_host,
                          base::StringPiece lower_ascii_domain);
 
+// 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