Change includes of histogram.h to histogram_macros.h.

components/domain_reliability/context.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/domain_reliability/context.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
-#include "base/metrics/histogram.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/rand_util.h"
 #include "base/values.h"
 #include "components/domain_reliability/dispatcher.h"
 #include "components/domain_reliability/uploader.h"
 #include "components/domain_reliability/util.h"
 #include "net/base/net_errors.h"
 #include "net/url_request/url_request_context_getter.h"
 
 using base::DictionaryValue;
@@ skipping 226 matching lines @@
   delete beacons_.front();
   beacons_.pop_front();
 
   // If that just removed a beacon counted in uploading_beacons_size_, decrement
   // that.
   if (uploading_beacons_size_ > 0)
     --uploading_beacons_size_;
 }
 
 }  // namespace domain_reliability