Wait for the attestation to be ready (TPM being prepared for attestation) before trying to enroll.

chrome/browser/chromeos/attestation/platform_verification_flow.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/attestation/platform_verification_flow.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 143 matching lines @@
 
 PlatformVerificationFlow::PlatformVerificationFlow()
     : attestation_flow_(NULL),
       async_caller_(cryptohome::AsyncMethodCaller::GetInstance()),
       cryptohome_client_(DBusThreadManager::Get()->GetCryptohomeClient()),
       delegate_(NULL),
       timeout_delay_(base::TimeDelta::FromSeconds(kTimeoutInSeconds)) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   std::unique_ptr<ServerProxy> attestation_ca_client(new AttestationCAClient());
   default_attestation_flow_.reset(new AttestationFlow(
-      async_caller_, cryptohome_client_, std::move(attestation_ca_client)));
+      async_caller_, cryptohome_client_, std::move(attestation_ca_client),
+      base::TimeDelta::FromMinutes(1)));
   attestation_flow_ = default_attestation_flow_.get();
   default_delegate_.reset(new DefaultDelegate());
   delegate_ = default_delegate_.get();
 }
 
 PlatformVerificationFlow::PlatformVerificationFlow(
     AttestationFlow* attestation_flow,
     cryptohome::AsyncMethodCaller* async_caller,
     CryptohomeClient* cryptohome_client,
     Delegate* delegate)
@@ skipping 253 matching lines @@
   if (!operation_success) {
     LOG(WARNING) << "PlatformVerificationFlow: Failed to renew platform "
                     "certificate.";
     return;
   }
   VLOG(1) << "Certificate successfully renewed.";
 }
 
 }  // namespace attestation
 }  // namespace chromeos