Remove BrowserPlugin's -internal-attach method

chrome/chrome_renderer.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.
 
 {
   'variables': {
     'chrome_renderer_sources': [
       'renderer/benchmarking_extension.cc',
       'renderer/benchmarking_extension.h',
       'renderer/extensions/chrome_extension_helper.cc',
@@ skipping 119 matching lines @@
       'renderer/extensions/chrome_extensions_render_frame_observer.cc',
       'renderer/extensions/chrome_extensions_render_frame_observer.h',
       'renderer/extensions/chrome_v8_extension_handler.cc',
       'renderer/extensions/chrome_v8_extension_handler.h',
       'renderer/extensions/enterprise_platform_keys_natives.cc',
       'renderer/extensions/enterprise_platform_keys_natives.h',
       'renderer/extensions/file_browser_handler_custom_bindings.cc',
       'renderer/extensions/file_browser_handler_custom_bindings.h',
       'renderer/extensions/file_browser_private_custom_bindings.cc',
       'renderer/extensions/file_browser_private_custom_bindings.h',
+      'renderer/extensions/guest_view_internal_custom_bindings.cc',
+      'renderer/extensions/guest_view_internal_custom_bindings.h',
       'renderer/extensions/media_galleries_custom_bindings.cc',
       'renderer/extensions/media_galleries_custom_bindings.h',
       'renderer/extensions/notifications_native_handler.cc',
       'renderer/extensions/notifications_native_handler.h',
       'renderer/extensions/page_actions_custom_bindings.cc',
       'renderer/extensions/page_actions_custom_bindings.h',
       'renderer/extensions/page_capture_custom_bindings.cc',
       'renderer/extensions/page_capture_custom_bindings.h',
       'renderer/extensions/sync_file_system_custom_bindings.cc',
       'renderer/extensions/sync_file_system_custom_bindings.h',
@@ skipping 277 matching lines @@
         }],
         ['enable_printing!=0', {
           'dependencies': [
             '../printing/printing.gyp:printing',
           ],
         }],
       ],
     },
   ],
 }