Add Refresh{Device,User}Policies methods into AuthPolicyClient

chromeos/dbus/fake_auth_policy_client.h

Index: chromeos/dbus/fake_auth_policy_client.h
diff --git a/chromeos/dbus/fake_auth_policy_client.h b/chromeos/dbus/fake_auth_policy_client.h
index 1e71dd48d3a7c3c16e221294c88d87a4ad6503b5..f7a5faba8da8d95263ca63f2c6cddd98e7834144 100644
--- a/chromeos/dbus/fake_auth_policy_client.h
+++ b/chromeos/dbus/fake_auth_policy_client.h
@@ -25,6 +25,9 @@ class CHROMEOS_EXPORT FakeAuthPolicyClient : public AuthPolicyClient {
                     const std::string& user,
                     int password_fd,
                     const JoinCallback& callback) override;
+  void RefreshDevicePolicies(const RefreshPoliciesCallback& calllback) override;
+  void RefreshUserPolicies(const std::string& account_id,
+                           const RefreshPoliciesCallback& calllback) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FakeAuthPolicyClient);