Remove PrerenderResourceThrottle and related infrastructure.

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 1666 matching lines @@
         'browser/prerender/prerender_history.cc',
         'browser/prerender/prerender_history.h',
         'browser/prerender/prerender_manager.cc',
         'browser/prerender/prerender_manager.h',
         'browser/prerender/prerender_manager_factory.cc',
         'browser/prerender/prerender_manager_factory.h',
         'browser/prerender/prerender_origin.cc',
         'browser/prerender/prerender_origin.h',
         'browser/prerender/prerender_render_view_host_observer.cc',
         'browser/prerender/prerender_render_view_host_observer.h',
-        'browser/prerender/prerender_resource_throttle.cc',
-        'browser/prerender/prerender_resource_throttle.h',
         'browser/prerender/prerender_tab_helper.cc',
         'browser/prerender/prerender_tab_helper.h',
         'browser/prerender/prerender_tracker.cc',
         'browser/prerender/prerender_tracker.h',
         'browser/prerender/prerender_util.cc',
         'browser/prerender/prerender_util.h',
         'browser/printing/background_printing_manager.cc',
         'browser/printing/background_printing_manager.h',
         'browser/printing/cloud_print/cloud_print_proxy_service.cc',
         'browser/printing/cloud_print/cloud_print_proxy_service.h',
@@ skipping 3531 matching lines @@
       'type': 'static_library',
       'sources': [ 'browser/history/in_memory_url_index_cache.proto' ],
       'variables': {
         'proto_in_dir': 'browser/history',
         'proto_out_dir': 'chrome/browser/history',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }