gpu: Add async pixel transfer interface, stub and tests.

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 os
 import collections
 import re
@@ skipping 884 matching lines @@
   'names': ['eglGetProcAddress'],
   'arguments': 'const char* procname', },
 { 'return_type': 'EGLBoolean',
   'names': ['eglPostSubBufferNV'],
   'arguments': 'EGLDisplay dpy, EGLSurface surface, '
     'EGLint x, EGLint y, EGLint width, EGLint height', },
 { 'return_type': 'EGLBoolean',
   'names': ['eglQuerySurfacePointerANGLE'],
   'arguments':
       'EGLDisplay dpy, EGLSurface surface, EGLint attribute, void** value', },
+{ 'return_type': 'EGLSyncKHR',
+  'names': ['eglCreateSyncKHR'],
+  'arguments': 'EGLDisplay dpy, EGLenum type, const EGLint* attrib_list', },
+{ 'return_type': 'EGLint',
+  'names': ['eglClientWaitSyncKHR'],
+  'arguments': 'EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, '
+      'EGLTimeKHR timeout', },
 ]
 
 WGL_FUNCTIONS = [
 { 'return_type': 'HGLRC',
   'names': ['wglCreateContext'],
   'arguments': 'HDC hdc', },
 { 'return_type': 'HGLRC',
   'names': ['wglCreateLayerContext'],
   'arguments': 'HDC hdc, int iLayerPlane', },
 { 'return_type': 'BOOL',
@@ skipping 809 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:]))