Remove unused / unnecessary stuff from Instant.

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',
@@ skipping 913 matching lines @@
         'browser/infobars/infobar.h',
         'browser/infobars/infobar_container.cc',
         'browser/infobars/infobar_container.h',
         'browser/infobars/infobar_tab_helper.cc',
         'browser/infobars/infobar_tab_helper.h',
         'browser/infobars/insecure_content_infobar_delegate.cc',
         'browser/infobars/insecure_content_infobar_delegate.h',
         'browser/instant/instant_commit_type.h',
         'browser/instant/instant_controller.cc',
         'browser/instant/instant_controller.h',
-        'browser/instant/instant_controller_delegate.h',
         'browser/instant/instant_loader.cc',
         'browser/instant/instant_loader.h',
-        'browser/instant/instant_loader_delegate.h',
         'browser/instant/instant_model.cc',
         'browser/instant/instant_model.h',
         'browser/instant/instant_model_observer.h',
         'browser/instant/instant_preview_controller.cc',
         'browser/instant/instant_preview_controller.h',
         'browser/instant/instant_unload_handler.cc',
         'browser/instant/instant_unload_handler.h',
         'browser/intents/cws_intents_registry.cc',
         'browser/intents/cws_intents_registry.h',
         'browser/intents/cws_intents_registry_factory.cc',
@@ skipping 1986 matching lines @@
             'proto_in_dir': '../third_party/cros_system_api/dbus',
             'proto_out_dir': 'chrome/browser/media_transfer_protocol',
           },
           'includes': ['../build/protoc.gypi'],
         },
       ],
      },
     ],
   ],
 }