Update a bunch of files to the new location of browser_thread.h

chrome/browser/download/download_file_manager.cc

 // Copyright (c) 2010 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 "chrome/browser/download/download_file_manager.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/stl_util-inl.h"
 #include "base/task.h"
 #include "base/utf_string_conversions.h"
 #include "build/build_config.h"
-#include "chrome/browser/browser_thread.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/download/download_util.h"
 #include "chrome/browser/history/download_create_info.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/tab_contents/tab_util.h"
-#include "chrome/browser/tab_contents/tab_contents.h"
+#include "content/browser/browser_thread.h"
+#include "content/browser/renderer_host/resource_dispatcher_host.h"
+#include "content/browser/tab_contents/tab_contents.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/io_buffer.h"
 
 namespace {
 
 // Throttle updates to the UI thread so that a fast moving download doesn't
 // cause it to become unresponsive (in milliseconds).
 const int kUpdatePeriodMs = 500;
 
 DownloadManager* DownloadManagerForRenderViewHost(int render_process_id,
@@ skipping 342 matching lines @@
 
   DownloadFile* download_file = downloads_[id];
 
   downloads_.erase(id);
 
   if (ContainsKey(downloads_with_final_name_, id))
     downloads_with_final_name_.erase(id);
 
   delete download_file;
 }