Fix policy test server key rotation feature

chrome/browser/policy/test/local_policy_test_server.h

Index: chrome/browser/policy/test/local_policy_test_server.h
diff --git a/chrome/browser/policy/test/local_policy_test_server.h b/chrome/browser/policy/test/local_policy_test_server.h
index de7956f47a9a10b31835f3ad73f9faddef8d9e3a..9ab03cddecf2bb5c6831e16543666a13e27b593f 100644
--- a/chrome/browser/policy/test/local_policy_test_server.h
+++ b/chrome/browser/policy/test/local_policy_test_server.h
@@ -44,6 +44,11 @@ class LocalPolicyTestServer : public net::LocalTestServer {
   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
@@ -93,6 +98,7 @@ class LocalPolicyTestServer : public net::LocalTestServer {
   base::FilePath policy_key_;
   base::DictionaryValue clients_;
   base::ScopedTempDir server_data_dir_;
+  bool signing_keys_automatic_rotation_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(LocalPolicyTestServer);
 };