[Sync] Log age of auth tokens on authentication failure

chrome/browser/signin/signin_internals_util.h

Index: chrome/browser/signin/signin_internals_util.h
diff --git a/chrome/browser/signin/signin_internals_util.h b/chrome/browser/signin/signin_internals_util.h
index 993a8eea1cc6aac6be9fbfabb67ff2b2ee92d707..eeec21587094db8220bd8286f7111a23d8a0245a 100644
--- a/chrome/browser/signin/signin_internals_util.h
+++ b/chrome/browser/signin/signin_internals_util.h
@@ -64,14 +64,16 @@ enum {
 // values, we replicate the service name within this struct for a cleaner
 // serialization (with ToValue()).
 struct TokenInfo {
-  std::string token;  // The actual token.
-  std::string status;  // Status of the last token fetch.
-  std::string time;  // Timestamp of the last token fetch.
+  std::string token;    // The actual token.
+  std::string status;   // Status of the last token fetch.
+  std::string time;     // Timestamp of the last token fetch
+  int64 time_internal;  // Same as |time|, but in base::Time internal format.
   std::string service;  // The service that this token is for.
 
   TokenInfo(const std::string& token,
             const std::string& status,
             const std::string& time,
+            const int64& time_internal,
             const std::string& service);
   TokenInfo();
   ~TokenInfo();
@@ -88,7 +90,7 @@ typedef std::map<std::string, TokenInfo> TokenInfoMap;
 std::string TokenPrefPath(const std::string& service_name);
 
 // Many values in SigninStatus are also associated with a timestamp.
-// This makes it easier to keep values and their assoicated times together.
+// This makes it easier to keep values and their associated times together.
 typedef std::pair<std::string, std::string> TimedSigninStatusValue;
 
 // Returns the name of a SigninStatus field.