Add operator==(const GURL&, const StringPiece&) to gurl.h

url/gurl.cc

 // 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.
 
 #include "url/gurl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <ostream>
@@ skipping 162 matching lines @@
 }
 
 const std::string& GURL::spec() const {
   if (is_valid_ || spec_.empty())
     return spec_;
 
   DCHECK(false) << "Trying to get the spec of an invalid URL!";
   return EmptyStringForGURL();
 }
 
-bool GURL::operator==(const GURL& other) const {
-  return spec_ == other.spec_;
-}
-
-bool GURL::operator!=(const GURL& other) const {
-  return spec_ != other.spec_;
-}
-
 bool GURL::operator<(const GURL& other) const {
   return spec_ < other.spec_;
 }
 
 bool GURL::operator>(const GURL& other) const {
   return spec_ > other.spec_;
 }
 
 // Note: code duplicated below (it's inconvenient to use a template here).
 GURL GURL::Resolve(const std::string& relative) const {
@@ skipping 302 matching lines @@
 void GURL::Swap(GURL* other) {
   spec_.swap(other->spec_);
   std::swap(is_valid_, other->is_valid_);
   std::swap(parsed_, other->parsed_);
   inner_url_.swap(other->inner_url_);
 }
 
 std::ostream& operator<<(std::ostream& out, const GURL& url) {
   return out << url.possibly_invalid_spec();
 }
+
+bool operator==(const GURL& x, const GURL& y) {
+  return x.possibly_invalid_spec() == y.possibly_invalid_spec();
+}
+
+bool operator!=(const GURL& x, const GURL& y) {
+  return !(x == y);
+}
+
+bool operator==(const GURL& x, const base::StringPiece& spec) {
+  return x.possibly_invalid_spec() == spec;
+}
+
+bool operator!=(const GURL& x, const base::StringPiece& spec) {
+  return !(x == spec);
+}