Remove a chrome dependency by removing Prerender from ResourceDispatcherHost.

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 1726 matching lines @@
         'browser/renderer_host/offline_resource_handler.cc',
         'browser/renderer_host/offline_resource_handler.h',
         'browser/renderer_host/render_widget_host_view_gtk.cc',
         'browser/renderer_host/render_widget_host_view_gtk.h',
         'browser/renderer_host/render_widget_host_view_mac.h',
         'browser/renderer_host/render_widget_host_view_mac.mm',
         'browser/renderer_host/render_widget_host_view_views.cc',
         'browser/renderer_host/render_widget_host_view_views.h',
         'browser/renderer_host/render_widget_host_view_win.cc',
         'browser/renderer_host/render_widget_host_view_win.h',
+        'browser/renderer_host/resource_dispatcher_host_observer.cc',
+        'browser/renderer_host/resource_dispatcher_host_observer.h',
         'browser/renderer_host/safe_browsing_resource_handler.cc',
         'browser/renderer_host/safe_browsing_resource_handler.h',
         'browser/renderer_host/save_file_resource_handler.cc',
         'browser/renderer_host/save_file_resource_handler.h',
         'browser/renderer_host/text_input_client_mac.h',
         'browser/renderer_host/text_input_client_mac.mm',
         'browser/renderer_host/text_input_client_message_filter.h',
         'browser/renderer_host/text_input_client_message_filter.mm',
         'browser/renderer_host/web_cache_manager.cc',
         'browser/renderer_host/web_cache_manager.h',
@@ skipping 2840 matching lines @@
       'hard_dependency': 1,
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: