Add support for all blendmodes if we have GL_KHR_blend_equation_advanced.

ui/gl/generate_bindings.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 GL/GLES extension wrangler."""
 
 import optparse
 import os
 import collections
@@ skipping 850 matching lines @@
   'arguments': 'GLenum matrixMode, const GLfloat* m' },
 { 'return_type': 'void',
   'known_as': 'glMatrixLoadIdentityEXT',
   'versions': [{ 'name': 'glMatrixLoadIdentityEXT',
                  'gl_versions': ['gl4'],
                  'extensions': ['GL_EXT_direct_state_access'] },
                { 'name': 'glMatrixLoadIdentityEXT',
                  'gl_versions': ['es3'],
                  'extensions': ['GL_NV_path_rendering'] }],
   'arguments': 'GLenum matrixMode' },
+  { 'return_type': 'void',
+    'known_as': 'glBlendBarrierKHR',
+    'versions': [{ 'name': 'glBlendBarrierNV',
+                   'extensions': ['GL_NV_blend_equation_advanced'] },
+                 { 'name': 'glBlendBarrierKHR',
+                   'extensions': ['GL_KHR_blend_equation_advanced'] }],
+    'arguments': 'void' },
 ]
 
 OSMESA_FUNCTIONS = [
 { 'return_type': 'OSMesaContext',
   'names': ['OSMesaCreateContext'],
   'arguments': 'GLenum format, OSMesaContext sharelist', },
 { 'return_type': 'OSMesaContext',
   'names': ['OSMesaCreateContextExt'],
   'arguments':
       'GLenum format, GLint depthBits, GLint stencilBits, GLint accumBits, '
@@ skipping 1199 matching lines @@
 
   source_file = open(os.path.join(directory, 'gl_bindings_autogen_mock.cc'),
                      'wb')
   GenerateMockBindingsSource(source_file, GL_FUNCTIONS)
   source_file.close()
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))