Get rid of the following dependencies from content:

content/browser/browser_child_process_host.cc

 // Copyright (c) 2011 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/browser/browser_child_process_host.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/stl_util-inl.h"
 #include "base/string_util.h"
-#include "chrome/common/chrome_constants.h"
 #include "content/browser/browser_thread.h"
 #include "content/browser/content_browser_client.h"
 #include "content/browser/renderer_host/resource_message_filter.h"
 #include "content/browser/trace_message_filter.h"
 #include "content/common/content_switches.h"
 #include "content/common/notification_service.h"
 #include "content/common/plugin_messages.h"
 #include "content/common/process_watcher.h"
 #include "content/common/result_codes.h"
 
@@ skipping 174 matching lines @@
 
     return *iterator_;
   } while (true);
 
   return NULL;
 }
 
 bool BrowserChildProcessHost::Iterator::Done() {
   return iterator_ == g_child_process_list.Get().end();
 }