Clean up header files.

components/signin/core/browser/signin_metrics.cc

 // 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.
 
 #include "components/signin/core/browser/signin_metrics.h"
 
+#include <limits.h>
+
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/user_metrics.h"
 #include "base/time/time.h"
 
 namespace signin_metrics {
 
 // Helper method to determine which |DifferentPrimaryAccounts| applies.
 DifferentPrimaryAccounts ComparePrimaryAccounts(bool primary_accounts_same,
                                                 int pre_count_gaia_cookies) {
@@ skipping 130 matching lines @@
       (base::Time::Now() - previous_activity_time).InMinutes(), 1,
       base::TimeDelta::FromDays(30).InMinutes(), 50);
 }
 
 void LogAccountReconcilorStateOnGaiaResponse(AccountReconcilorState state) {
   UMA_HISTOGRAM_ENUMERATION("Signin.AccountReconcilorState.OnGaiaResponse",
                             state, ACCOUNT_RECONCILOR_HISTOGRAM_COUNT);
 }
 
 }  // namespace signin_metrics