gpu: Add EGL fence support.

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 660 matching lines @@
   'arguments': 'GLenum condition, GLbitfield flags', },
 { 'return_type': 'void',
   'names': ['glDeleteSync'],
   'arguments': 'GLsync sync', },
 { 'return_type': 'void',
   'names': ['glGetSynciv'],
   'arguments':
     'GLsync sync, GLenum pname, GLsizei bufSize, GLsizei* length,'
     'GLint* values', },
 { 'return_type': 'void',
+  'names': ['glClientWaitSync'],
+  'arguments':
+    'GLsync sync, GLbitfield flags, GLuint64 timeout', },
+{ 'return_type': 'void',
   'names': ['glDrawArraysInstancedANGLE', 'glDrawArraysInstancedARB'],
   'arguments': 'GLenum mode, GLint first, GLsizei count, GLsizei primcount', },
 { 'return_type': 'void',
   'names': ['glDrawElementsInstancedANGLE', 'glDrawElementsInstancedARB'],
   'arguments':
       'GLenum mode, GLsizei count, GLenum type, const void* indices, '
       'GLsizei primcount', },
 { 'return_type': 'void',
   'names': ['glVertexAttribDivisorANGLE', 'glVertexAttribDivisorARB'],
   'arguments':
@@ skipping 1112 matching lines @@
     header_file.close()
 
   source_file = open(os.path.join(dir, 'gl_bindings_autogen_mock.cc'), 'wb')
   GenerateMockSource(source_file, GL_FUNCTIONS)
   source_file.close()
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))