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

chrome/browser/password_manager/native_backend_gnome_x_unittest.cc

 // Copyright (c) 2012 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 <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <utility>
@@ skipping 1192 matching lines @@
   // Set the canonical forms to the updated value for the following comparison.
   form_google_.skip_zero_click = true;
   form_facebook_.skip_zero_click = true;
   PasswordStoreChangeList expected_changes;
   expected_changes.push_back(
       PasswordStoreChange(PasswordStoreChange::UPDATE, form_facebook_));
 
   PasswordStoreChangeList changes;
   BrowserThread::PostTaskAndReplyWithResult(
       BrowserThread::DB, FROM_HERE,
-      base::Bind(&NativeBackendGnome::DisableAutoSignInForOrigins,
-                 base::Unretained(&backend),
-                 base::Bind(&GURL::operator==,
-                            base::Unretained(&form_facebook_.origin)),
-                 &changes),
+      base::Bind(
+          &NativeBackendGnome::DisableAutoSignInForOrigins,
+          base::Unretained(&backend),
+          base::Bind(
+              static_cast<bool (*)(const GURL&, const GURL&)>(operator==),
+              form_facebook_.origin),
+          &changes),
       base::Bind(&CheckPasswordChangesWithResult, &expected_changes, &changes));
   RunBothThreads();
 
   EXPECT_EQ(2u, mock_keyring_items.size());
   CheckStringAttribute(
       &mock_keyring_items[0], "origin_url", form_google_.origin.spec());
   CheckUint32Attribute(&mock_keyring_items[0], "should_skip_zero_click", 0);
   CheckStringAttribute(
       &mock_keyring_items[1], "origin_url", form_facebook_.origin.spec());
   CheckUint32Attribute(&mock_keyring_items[1], "should_skip_zero_click", 1);
@@ skipping 71 matching lines @@
       base::Bind(&CheckTrue));
 
   RunBothThreads();
 
   EXPECT_EQ(2u, form_list.size());
   EXPECT_THAT(form_list, UnorderedElementsAre(Pointee(form_google_),
                                               Pointee(form_facebook_)));
 }
 
 // TODO(mdm): add more basic tests here at some point.