Fix glGetTexParameter so it works for TEXTURE_CUBE_MAP

gpu/command_buffer/build_gles2_cmd_buffer.py

 #!/usr/bin/env python
 # 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.
 
 """code generator for GLES2 command buffers."""
 
 import os
 import os.path
 import sys
@@ skipping 195 matching lines @@
       'GL_VIEWPORT',
     ],
     'invalid': [
       'GL_FOG_HINT',
     ],
   },
   'GetTexParamTarget': {
     'type': 'GLenum',
     'valid': [
       'GL_TEXTURE_2D',
-      'GL_TEXTURE_CUBE_MAP_POSITIVE_X',
-      'GL_TEXTURE_CUBE_MAP_NEGATIVE_X',
-      'GL_TEXTURE_CUBE_MAP_POSITIVE_Y',
-      'GL_TEXTURE_CUBE_MAP_NEGATIVE_Y',
-      'GL_TEXTURE_CUBE_MAP_POSITIVE_Z',
-      'GL_TEXTURE_CUBE_MAP_NEGATIVE_Z',
+      'GL_TEXTURE_CUBE_MAP',
     ],
     'invalid': [
       'GL_PROXY_TEXTURE_CUBE_MAP',
     ]
   },
   'TextureTarget': {
     'type': 'GLenum',
     'valid': [
       'GL_TEXTURE_2D',
       'GL_TEXTURE_CUBE_MAP_POSITIVE_X',
@@ skipping 6041 matching lines @@
     gen.WriteCommonUtilsImpl("common/gles2_cmd_utils_implementation_autogen.h")
 
   if gen.errors > 0:
     print "%d errors" % gen.errors
     return 1
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))