Add a network state notification interface to Pepper. Some plugins will need

ppapi/ppapi_cpp.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': 'ppapi_c<(nacl_ppapi_library_suffix)',
       'type': 'none',
       'all_dependent_settings': {
@@ skipping 64 matching lines @@
         'c/dev/ppb_scrollbar_dev.h',
         'c/dev/ppb_surface_3d_dev.h',
         'c/dev/ppb_testing_dev.h',
         'c/dev/ppb_url_util_dev.h',
         'c/dev/ppb_video_decoder_dev.h',
         'c/dev/ppb_widget_dev.h',
         'c/dev/ppb_zoom_dev.h',
         'c/dev/ppp_cursor_control_dev.h',
         'c/dev/ppp_find_dev.h',
         'c/dev/ppp_graphics_3d_dev.h',
+        'c/dev/ppp_network_state_dev.h',
         'c/dev/ppp_scrollbar_dev.h',
         'c/dev/ppp_selection_dev.h',
         'c/dev/ppp_printing_dev.h',
         'c/dev/ppp_video_decoder_dev.h',
         'c/dev/ppp_widget_dev.h',
         'c/dev/ppp_zoom_dev.h',
 
         # Private interfaces.
         'c/private/ppb_flash.h',
         'c/private/ppb_flash_clipboard.h',
@@ skipping 188 matching lines @@
         }],
         ['OS=="mac"', {
           'xcode_settings': {
             'WARNING_CFLAGS': ['-Wextra', '-pedantic'],
            },
         }]
       ],
     },
   ],
 }