Add support for GL_EXT_debug_marker.

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 itertools
 import os
 import os.path
@@ skipping 3445 matching lines @@
     'type': 'GLchar',
     'extension': True,
     'data_transfer_methods': ['bucket'],
     'needs_size': True,
     'gl_test_func': 'DoBindUniformLocationCHROMIUM',
   },
   'InsertEventMarkerEXT': {
     'type': 'GLcharN',
     'decoder_func': 'DoInsertEventMarkerEXT',
     'expectation': False,
-    'extension': True,
+    'extension': "EXT_debug_marker",
   },
   'PushGroupMarkerEXT': {
     'type': 'GLcharN',
     'decoder_func': 'DoPushGroupMarkerEXT',
     'expectation': False,
-    'extension': True,
+    'extension': "EXT_debug_marker",
   },
   'PopGroupMarkerEXT': {
     'decoder_func': 'DoPopGroupMarkerEXT',
     'expectation': False,
-    'extension': True,
+    'extension': "EXT_debug_marker",
     'impl_func': False,
   },
 
   'GenVertexArraysOES': {
     'type': 'GENn',
     'extension': "OES_vertex_array_object",
     'gl_test_func': 'glGenVertexArraysOES',
     'resource_type': 'VertexArray',
     'resource_types': 'VertexArrays',
     'unit_test': False,
@@ skipping 7141 matching lines @@
     "gles2_cmd_validation_implementation_autogen.h")
   gen.WriteCommonUtilsHeader(
     "gpu/command_buffer/common/gles2_cmd_utils_autogen.h")
   gen.WriteCommonUtilsImpl(
     "gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h")
   gen.WriteGLES2Header("gpu/GLES2/gl2chromium_autogen.h")
   mojo_gles2_prefix = ("mojo/public/c/gles2/gles2_call_visitor")
   gen.WriteMojoGLCallVisitor(mojo_gles2_prefix + "_autogen.h")
   mojo_extensions = ["CHROMIUM_texture_mailbox", "CHROMIUM_sync_point",
                      "CHROMIUM_sub_image", "CHROMIUM_miscellaneous",
-                     "CHROMIUM_resize", "OES_vertex_array_object",
-                     "occlusion_query_EXT"]
+                     "CHROMIUM_resize", "EXT_debug_marker",
+                     "OES_vertex_array_object", "occlusion_query_EXT"]
   for extension in mojo_extensions:
     gen.WriteMojoGLCallVisitorForExtension(
         mojo_gles2_prefix + "_" + extension.lower() + "_autogen.h", extension)
 
   Format(gen.generated_cpp_filenames)
 
   if gen.errors > 0:
     print "%d errors" % gen.errors
     return 1
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))