Clean up sparse_histogram.h header

device/serial/serial_device_enumerator_mac.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 "device/serial/serial_device_enumerator_mac.h"
 
 #include <IOKit/serial/IOSerialKeys.h>
 #include <IOKit/usb/IOUSBLib.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
 #include <utility>
 
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/mac/scoped_ioobject.h"
-#include "base/metrics/sparse_histogram.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/strings/pattern.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 
 namespace device {
 
 namespace {
 
 // Searches a service and all ancestor services for a property with the
 // specified key, returning NULL if no such key was found.
@@ skipping 204 matching lines @@
   }
 
   mojo::Array<mojo::String> paths;
   mojo::Array<serial::DeviceInfoPtr> devices;
   deviceMap.DecomposeMapTo(&paths, &devices);
 
   return devices;
 }
 
 }  // namespace device