Change includes of histogram.h to histogram_macros.h.

components/signin/core/browser/signin_status_metrics_provider_base.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_status_metrics_provider_base.h"
 
-#include "base/metrics/histogram.h"
+#include "base/metrics/histogram_macros.h"
 
 SigninStatusMetricsProviderBase::SigninStatusMetricsProviderBase()
     : signin_status_(UNKNOWN_SIGNIN_STATUS) {}
 
 SigninStatusMetricsProviderBase::~SigninStatusMetricsProviderBase() {}
 
 void SigninStatusMetricsProviderBase::RecordSigninStatusHistogram(
     SigninStatus signin_status) {
   UMA_HISTOGRAM_ENUMERATION("UMA.ProfileSignInStatus", signin_status,
                             SIGNIN_STATUS_MAX);
 }
 
 void SigninStatusMetricsProviderBase::UpdateSigninStatus(
     SigninStatus new_status) {
   // The recorded sign-in status value can't be changed once it's recorded as
   // error until the next UMA upload.
   if (signin_status_ == ERROR_GETTING_SIGNIN_STATUS)
     return;
   signin_status_ = new_status;
 }
 
 void SigninStatusMetricsProviderBase::ResetSigninStatus() {
   signin_status_ = UNKNOWN_SIGNIN_STATUS;
 }