pepper: parse context creation attrib list on the plugin side

gpu/gpu_nacl.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,
     # nacl_win64_target is for building the trusted Win64 NaCl broker.
     'nacl_win64_target': 0,
   },
@@ skipping 104 matching lines @@
             'build_irt': 1,
             'build_pnacl_newlib': 0,
             'build_nonsfi_helper': 1,
           },
           'includes': [
             'command_buffer_traits.gypi',
           ],
           'dependencies': [
             '../base/base_nacl.gyp:base_nacl',
             '../base/base_nacl.gyp:base_nacl_nonsfi',
+            '../ui/gfx/ipc/geometry/gfx_ipc_geometry_nacl.gyp:gfx_ipc_geometry_nacl',
             'command_buffer_common_nacl',
           ],
         },
       ],
     }],
   ],
 }