Update the Pepper APIs to the latest spec for the 2D demo plugin....

third_party/npapi/npapi.gyp

 # Copyright (c) 2009 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': 'npapi',
       'type': 'none',
       'direct_dependent_settings': {
         'include_dirs': [
           # Some things #include "bindings/npapi.h" and others just #include
           # "npapi.h".  Account for both flavors.
           '.',
           'bindings',
         ],
       },
+      # Even though these are just headers and aren't compiled, adding them to
+      # the project makes it possible to open them in various IDEs.
+      'sources': [
+        'bindings/npapi.h',
+        'bindings/npapi_extensions.h',
+        'bindings/npruntime.h',
+      ],
+      'conditions': [
+        ['OS=="linux"', {
+          'sources': [
+            'bindings/npapi_x11.h',
+          ],
+        }],
+      ],
     },
   ],
 }
 
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 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: