Adapt Chrome OS related part of ChildAccountService.

chrome/browser/chromeos/login/users/mock_user_manager.h

Index: chrome/browser/chromeos/login/users/mock_user_manager.h
diff --git a/chrome/browser/chromeos/login/users/mock_user_manager.h b/chrome/browser/chromeos/login/users/mock_user_manager.h
index 1567f2a4b92709d114b3b7f1217ed065c25fab70..73e31aecd8f0d69a76923d0590e47395b43335b0 100644
--- a/chrome/browser/chromeos/login/users/mock_user_manager.h
+++ b/chrome/browser/chromeos/login/users/mock_user_manager.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_MOCK_USER_MANAGER_H_
 
 #include <string>
+#include <vector>
 
 #include "base/files/file_path.h"
 #include "base/memory/weak_ptr.h"
@@ -139,6 +140,7 @@ class MockUserManager : public ChromeUserManager {
   scoped_ptr<MockUserImageManager> user_image_manager_;
   scoped_ptr<FakeSupervisedUserManager> supervised_user_manager_;
   user_manager::UserList user_list_;
+  std::vector<TestingProfile*> profile_list_;
 };
 
 }  // namespace chromeos