Fix policy test server key rotation feature

chrome/browser/policy/test/local_policy_test_server.h

 // Copyright (c) 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.
 
 #ifndef CHROME_BROWSER_POLICY_TEST_LOCAL_POLICY_TEST_SERVER_H_
 #define CHROME_BROWSER_POLICY_TEST_LOCAL_POLICY_TEST_SERVER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 26 matching lines @@
   explicit LocalPolicyTestServer(const std::string& test_name);
 
   ~LocalPolicyTestServer() override;
 
   // Sets the policy signing key and verification signature used by the server.
   // This must be called before starting the server, and only works when the
   // server serves from a temporary directory.
   bool SetSigningKeyAndSignature(const crypto::RSAPrivateKey* key,
                                  const std::string& signature);
 
+  // Enables the automatic rotation of the policy signing keys. This must be
+  // called before starting the server, and only works when the server serves
+  // from a temporary directory.
+  void SetSigningKeysAutomaticRotation();

[Andrew T Wilson (Slow), 2016/11/25 14:50:09]

I think "EnableAutomaticRotationOfSigningKeys()" is probably clearer than
"SetXXXX".

[emaxx, 2016/11/25 16:17:38]

Done.

+
   // Pre-configures a registered client so the server returns policy without the
   // client having to make a registration call. This must be called before
   // starting the server, and only works when the server serves from a temporary
   // directory.
   void RegisterClient(const std::string& dm_token,
                       const std::string& device_id);
 
   // Updates policy served by the server for a given (type, entity_id) pair.
   // This only works when the server serves from a temporary directory.
   //
@@ skipping 29 matching lines @@
       base::DictionaryValue* arguments) const override;
 
  private:
   std::string GetSelector(const std::string& type,
                           const std::string& entity_id);
 
   base::FilePath config_file_;
   base::FilePath policy_key_;
   base::DictionaryValue clients_;
   base::ScopedTempDir server_data_dir_;
+  bool signing_keys_automatic_rotation_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(LocalPolicyTestServer);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_TEST_LOCAL_POLICY_TEST_SERVER_H_