Change includes of histogram.h to histogram_macros.h.

content/child/child_histogram_message_filter.cc

 // Copyright (c) 2012 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 "content/child/child_histogram_message_filter.h"
 
 #include <ctype.h>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/metrics/histogram_delta_serialization.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/metrics/persistent_histogram_allocator.h"
 #include "base/single_thread_task_runner.h"
 #include "content/child/child_process.h"
 #include "content/common/child_process_messages.h"
 #include "ipc/ipc_sender.h"
 
 namespace content {
 
 ChildHistogramMessageFilter::ChildHistogramMessageFilter()
     : sender_(NULL),
@@ skipping 69 matching lines @@
       new ChildProcessHostMsg_ChildHistogramData(sequence_number, deltas));
 
 #ifndef NDEBUG
   static int count = 0;
   count++;
   LOCAL_HISTOGRAM_COUNTS("Histogram.ChildProcessHistogramSentCount", count);
 #endif
 }
 
 }  // namespace content