Remove PPB_Scrollbar_Dev and PPB_Widget_Dev from native client

ppapi/native_client/src/shared/ppapi_proxy/ppapi_proxy.gyp

 # 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': {
     'chromium_code': 1,  # Use higher warning level.
   },
   'includes': [
     '../../../../../native_client/build/common.gypi',
@@ skipping 34 matching lines @@
         'browser_ppb_host_resolver_private_rpc_server.cc',
         'browser_ppb_image_data_rpc_server.cc',
         'browser_ppb_input_event_rpc_server.cc',
         'browser_ppb_instance_rpc_server.cc',
         'browser_ppb_messaging_rpc_server.cc',
         'browser_ppb_mouse_cursor_rpc_server.cc',
         'browser_ppb_mouse_lock_rpc_server.cc',
         'browser_ppb_net_address_private_rpc_server.cc',
         'browser_ppb_network_list_private_rpc_server.cc',
         'browser_ppb_network_monitor_private_rpc_server.cc',
-        'browser_ppb_pdf_rpc_server.cc',
         'browser_ppb_rpc_server.cc',
-        'browser_ppb_scrollbar_rpc_server.cc',
         'browser_ppb_tcp_server_socket_private_rpc_server.cc',
         'browser_ppb_tcp_socket_private_rpc_server.cc',
         'browser_ppb_testing_rpc_server.cc',
         'browser_ppb_udp_socket_private_rpc_server.cc',
         'browser_ppb_url_loader_rpc_server.cc',
         'browser_ppb_url_request_info_rpc_server.cc',
         'browser_ppb_url_response_info_rpc_server.cc',
         'browser_ppb_websocket_rpc_server.cc',
-        'browser_ppb_widget_rpc_server.cc',
         'browser_ppb_zoom_rpc_server.cc',
         'browser_ppp_find.cc',
         'browser_ppp_input_event.cc',
         'browser_ppp_instance.cc',
         'browser_ppp_messaging.cc',
         'browser_ppp_mouse_lock.cc',
         'browser_ppp_printing.cc',
-        'browser_ppp_scrollbar.cc',
         'browser_ppp_selection.cc',
-        'browser_ppp_widget.cc',
         'browser_ppp_zoom.cc',
         'browser_ppp.cc',
         'browser_upcall.cc',
         'input_event_data.cc',
         'object_serialize.cc',
         'ppp_instance_combined.cc',
         'utility.cc',
         'view_data.cc',
         # Autogerated files
         'ppp_rpc_client.cc',
         'ppb_rpc_server.cc',
         'upcall_server.cc',
       ],
       'include_dirs': [
         '<(DEPTH)/ppapi/native_client/src/shared/ppapi_proxy/trusted',
         '<(DEPTH)/ppapi',
       ],
       'dependencies': [
         '<(DEPTH)/ppapi/ppapi.gyp:ppapi_c',
       ],
     },
   ],
 }