UserPolicyCache only becomes ready after policy has been fetched.

chrome/browser/policy/device_token_fetcher.cc

 // Copyright (c) 2011 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/policy/device_token_fetcher.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
@@ skipping 206 matching lines @@
       break;
   }
 
   scheduler_->CancelDelayedWork();
   if (!delayed_work_at.is_null()) {
     base::Time now(base::Time::Now());
     int64 delay = std::max<int64>((delayed_work_at - now).InMilliseconds(), 0);
     scheduler_->PostDelayedWork(
         base::Bind(&DeviceTokenFetcher::DoWork, base::Unretained(this)), delay);
   }
+
+  // Inform the cache if a token fetch attempt has failed.
+  if (state_ != STATE_INACTIVE && state_ != STATE_TOKEN_AVAILABLE)
+    cache_->SetFetchingDone();
 }
 
 void DeviceTokenFetcher::DoWork() {
   switch (state_) {
     case STATE_INACTIVE:
     case STATE_TOKEN_AVAILABLE:
     case STATE_BAD_SERIAL:
       break;
     case STATE_UNMANAGED:
     case STATE_ERROR:
     case STATE_TEMPORARY_ERROR:
     case STATE_BAD_AUTH:
       FetchTokenInternal();
       break;
   }
 }
 
 }  // namespace policy