Attempt an on-demand time fetch when encountering a date invalid error

components/network_time/network_time_tracker.h

 // Copyright 2014 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 COMPONENTS_NETWORK_TIME_NETWORK_TIME_TRACKER_H_
 #define COMPONENTS_NETWORK_TIME_NETWORK_TIME_TRACKER_H_
 
 #include <stdint.h>
 #include <memory>
 
@@ skipping 116 matching lines @@
   void SetMaxResponseSizeForTesting(size_t limit);
 
   void SetPublicKeyForTesting(const base::StringPiece& key);
 
   void SetTimeServerURLForTesting(const GURL& url);
 
   bool QueryTimeServiceForTesting();
 
   void WaitForFetchForTesting(uint32_t nonce);
 
+  void OverrideNonceForTesting(uint32_t nonce);
+
   base::TimeDelta GetTimerDelayForTesting() const;
 
  private:
   // Checks whether a network time query should be issued, and issues one if so.
   // Upon response, execution resumes in |OnURLFetchComplete|.
   void CheckTime();
 
   // Updates network time from a time server response, returning true
   // if successful.
   bool UpdateTimeFromResponse();
@@ skipping 54 matching lines @@
   std::vector<base::Closure> fetch_completion_callbacks_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkTimeTracker);
 };
 
 }  // namespace network_time
 
 #endif  // COMPONENTS_NETWORK_TIME_NETWORK_TIME_TRACKER_H_