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 1713 matching lines @@
         'browser/profiles/profile_keyed_service_factory.h',
         'browser/profiles/profile_manager.cc',
         'browser/profiles/profile_manager.h',
         'browser/remove_rows_table_model.h',
         'browser/renderer_host/accelerated_plugin_view_mac.h',
         'browser/renderer_host/accelerated_plugin_view_mac.mm',
         'browser/renderer_host/chrome_render_message_filter.cc',
         'browser/renderer_host/chrome_render_message_filter.h',
         'browser/renderer_host/chrome_render_view_host_observer.cc',
         'browser/renderer_host/chrome_render_view_host_observer.h',
+        'browser/renderer_host/chrome_resource_dispatcher_host_observer.cc',
+        'browser/renderer_host/chrome_resource_dispatcher_host_observer.h',
         'browser/renderer_host/download_resource_handler.cc',
         'browser/renderer_host/download_resource_handler.h',
         'browser/renderer_host/download_throttling_resource_handler.cc',
         'browser/renderer_host/download_throttling_resource_handler.h',
         'browser/renderer_host/gtk_im_context_wrapper.cc',
         'browser/renderer_host/gtk_im_context_wrapper.h',
         'browser/renderer_host/gtk_key_bindings_handler.cc',
         'browser/renderer_host/gtk_key_bindings_handler.h',
         'browser/renderer_host/offline_resource_handler.cc',
         'browser/renderer_host/offline_resource_handler.h',
@@ skipping 2836 matching lines @@
       'hard_dependency': 1,
     },
   ],
 }
 
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 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: