Migrate more files to histogram_macros.h from histogram.h.

extensions/browser/sandboxed_unpacker.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 "extensions/browser/sandboxed_unpacker.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <set>
 #include <tuple>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/message_loop/message_loop.h"
-#include "base/metrics/histogram.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/path_service.h"
 #include "base/sequenced_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "build/build_config.h"
 #include "components/crx_file/crx_file.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/utility_process_host.h"
@@ skipping 896 matching lines @@
 
 SandboxedUnpacker::UtilityHostWrapper::~UtilityHostWrapper() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   if (utility_host_) {
     utility_host_->EndBatchMode();
     utility_host_.reset();
   }
 }
 
 }  // namespace extensions