Update from https://crrev.com/304121

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 1177 matching lines @@
       'GL_RGBA',
     ],
   },
   'ImageUsage': {
     'type': 'GLenum',
     'valid': [
       'GL_MAP_CHROMIUM',
       'GL_SCANOUT_CHROMIUM'
     ],
   },
+  'ValueBufferTarget': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_SUBSCRIBED_VALUES_BUFFER_CHROMIUM',
+    ],
+  },
+  'SubscriptionTarget': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_MOUSE_POSITION_CHROMIUM',
+    ],
+  },
   'VertexAttribType': {
     'type': 'GLenum',
     'valid': [
       'GL_BYTE',
       'GL_UNSIGNED_BYTE',
       'GL_SHORT',
       'GL_UNSIGNED_SHORT',
     #  'GL_FIXED',  // This is not available on Desktop GL.
       'GL_FLOAT',
     ],
@@ skipping 233 matching lines @@
   'CreateAndConsumeTextureCHROMIUM': {
     'decoder_func': 'DoCreateAndConsumeTextureCHROMIUM',
     'impl_func': False,
     'type': 'HandWritten',
     'data_transfer_methods': ['immediate'],
     'unit_test': False,
     'client_test': False,
     'extension': "CHROMIUM_texture_mailbox",
     'chromium': True,
   },
+  'GenValuebuffersCHROMIUM': {
+    'type': 'GENn',
+    'gl_test_func': 'glGenValuebuffersCHROMIUM',
+    'resource_type': 'Valuebuffer',
+    'resource_types': 'Valuebuffers',
+    'unit_test': False,
+    'extension': True,
+    'chromium': True,
+  },
+  'DeleteValuebuffersCHROMIUM': {
+    'type': 'DELn',
+    'gl_test_func': 'glDeleteValuebuffersCHROMIUM',
+    'resource_type': 'Valuebuffer',
+    'resource_types': 'Valuebuffers',
+    'unit_test': False,
+    'extension': True,
+    'chromium': True,
+  },
+  'IsValuebufferCHROMIUM': {
+    'type': 'Is',
+    'decoder_func': 'DoIsValuebufferCHROMIUM',
+    'expectation': False,
+    'extension': True,
+    'chromium': True,
+  },
+  'BindValuebufferCHROMIUM': {
+    'type': 'Bind',
+    'decoder_func': 'DoBindValueBufferCHROMIUM',
+    'gen_func': 'GenValueBuffersCHROMIUM',
+    'unit_test': False,
+    'extension': True,
+    'chromium': True,
+  },
+  'SubscribeValueCHROMIUM': {
+    'decoder_func': 'DoSubscribeValueCHROMIUM',
+    'unit_test': False,
+    'extension': True,
+    'chromium': True,
+  },
+  'PopulateSubscribedValuesCHROMIUM': {
+    'decoder_func': 'DoPopulateSubscribedValuesCHROMIUM',
+    'unit_test': False,
+    'extension': True,
+    'chromium': True,
+  },
+  'UniformValuebufferCHROMIUM': {
+    'decoder_func': 'DoUniformValueBufferCHROMIUM',
+    'unit_test': False,
+    'extension': True,
+    'chromium': True,
+  },
   'ClearStencil': {
     'type': 'StateSet',
     'state': 'ClearStencil',
   },
   'EnableFeatureCHROMIUM': {
     'type': 'Custom',
     'data_transfer_methods': ['shm'],
     'decoder_func': 'DoEnableFeatureCHROMIUM',
     'expectation': False,
     'cmd_args': 'GLuint bucket_id, GLint* result',
@@ skipping 339 matching lines @@
   'GetMaxValueInBufferCHROMIUM': {
     'type': 'Is',
     'decoder_func': 'DoGetMaxValueInBufferCHROMIUM',
     'result': ['GLuint'],
     'unit_test': False,
     'client_test': False,
     'extension': True,
     'chromium': True,
     'impl_func': False,
   },
-  'GetMultipleIntegervCHROMIUM': {
-    'type': 'Custom',
-    'data_transfer_methods': ['shm'],
-    'expectation': False,
-    'extension': True,
-    'chromium': True,
-    'client_test': False,
-  },
   'GetProgramiv': {
     'type': 'GETn',
     'decoder_func': 'DoGetProgramiv',
     'result': ['SizedResult<GLint>'],
     'expectation': False,
   },
   'GetProgramInfoCHROMIUM': {
     'type': 'Custom',
     'expectation': False,
     'impl_func': False,
@@ skipping 6804 matching lines @@
   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:]))