ChromeOS cryptohome should be able to use gaia id as user identifier.

chrome/browser/chromeos/login/login_manager_test.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 "chrome/browser/chromeos/login/login_manager_test.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 32 matching lines @@
 
 const char kGAIAHost[] = "accounts.google.com";
 const char kTestUserinfoToken1[] = "fake-userinfo-token-1";
 const char kTestRefreshToken1[] = "fake-refresh-token-1";
 const char kTestUserinfoToken2[] = "fake-userinfo-token-2";
 const char kTestRefreshToken2[] = "fake-refresh-token-2";
 
 UserContext CreateUserContext(const std::string& user_id) {
   UserContext user_context(AccountId::FromUserEmailGaiaId(
       user_id, LoginManagerTest::GetGaiaIDForUserID(user_id)));
-  user_context.SetGaiaID(LoginManagerTest::GetGaiaIDForUserID(user_id));
   user_context.SetKey(Key("password"));
   if (user_id == LoginManagerTest::kEnterpriseUser1) {
     user_context.SetRefreshToken(kTestRefreshToken1);
   } else if (user_id == LoginManagerTest::kEnterpriseUser2) {
     user_context.SetRefreshToken(kTestRefreshToken2);
   }
   return user_context;
 }
 
 }  // namespace
@@ skipping 158 matching lines @@
   EXPECT_TRUE(host != NULL);
 
   content::WebContents* web_contents =
       host->GetWebUILoginView()->GetWebContents();
   EXPECT_TRUE(web_contents != NULL);
   set_web_contents(web_contents);
   js_checker_.set_web_contents(web_contents);
 }
 
 }  // namespace chromeos