Cleanup: Remove more unneeded browser_thread.h includes.

chrome/browser/download/download_util.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.
 //
 // Download utility implementation
 
 #define _USE_MATH_DEFINES  // For VC++ to get M_PI. This has to be first.
 
 #include "chrome/browser/download/download_util.h"
 
@@ skipping 12 matching lines @@
 #include "base/threading/thread_restrictions.h"
 #include "base/utf_string_conversions.h"
 #include "base/value_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/download/download_extensions.h"
 #include "chrome/browser/download/download_item_model.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/time_format.h"
-#include "content/public/browser/browser_thread.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/download_manager.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/common/url_constants.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
 #include "grit/theme_resources.h"
 #include "net/base/mime_util.h"
 #include "net/base/net_util.h"
 #include "skia/ext/image_operations.h"
@@ skipping 451 matching lines @@
   UMA_HISTOGRAM_ENUMERATION(
       "Download.CountsChrome", type, CHROME_DOWNLOAD_COUNT_TYPES_LAST_ENTRY);
 }
 
 void RecordDownloadSource(ChromeDownloadSource source) {
   UMA_HISTOGRAM_ENUMERATION(
       "Download.SourcesChrome", source, CHROME_DOWNLOAD_SOURCE_LAST_ENTRY);
 }
 
 }  // namespace download_util