Add GURL::EqualsIgnoringRef().

url/gurl.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef URL_GURL_H_
 #define URL_GURL_H_
 
 #include <stddef.h>
 
 #include <iosfwd>
@@ skipping 367 matching lines @@
   // the given input string. For example, if the hostname of the URL is
   // "www.google.com", this will return true for "com", "google.com", and
   // "www.google.com".
   //
   // The input domain should be lower-case ASCII to match the canonicalized
   // scheme. This call is more efficient than getting the host and check
   // whether host has the specific domain or not because no copies or
   // object constructions are done.
   bool DomainIs(base::StringPiece lower_ascii_domain) const;
 
+  // Checks whether or not two URLs are differing only in the ref (the part
+  // after the # character).
+  bool EqualsIgnoringRef(const GURL& other) const;
+
   // Swaps the contents of this GURL object with |other|, without doing
   // any memory allocations.
   void Swap(GURL* other);
 
   // Returns a reference to a singleton empty GURL. This object is for callers
   // who return references but don't have anything to return in some cases.
   // If you just want an empty URL for normal use, prefer GURL(). This function
   // may be called from any thread.
   static const GURL& EmptyGURL();
 
@@ skipping 59 matching lines @@
 URL_EXPORT bool operator==(const GURL& x, const GURL& y);
 URL_EXPORT bool operator!=(const GURL& x, const GURL& y);
 
 // Equality operator for comparing raw spec_. This should be used in place of
 // url == GURL(spec) where |spec| is known (i.e. constants). This is to prevent
 // needlessly re-parsing |spec| into a temporary GURL.
 URL_EXPORT bool operator==(const GURL& x, const base::StringPiece& spec);
 URL_EXPORT bool operator!=(const GURL& x, const base::StringPiece& spec);
 
 #endif  // URL_GURL_H_