Update from https://crrev.com/304121

gpu/command_buffer/build_gles2_cmd_buffer.py

Index: gpu/command_buffer/build_gles2_cmd_buffer.py
diff --git a/gpu/command_buffer/build_gles2_cmd_buffer.py b/gpu/command_buffer/build_gles2_cmd_buffer.py
index 94c3b3457fad32f82f57964a1117989dcfa118d6..226cb738a55d58fd482cacf7d2a65e2c14e73661 100755
--- a/gpu/command_buffer/build_gles2_cmd_buffer.py
+++ b/gpu/command_buffer/build_gles2_cmd_buffer.py
@@ -1195,6 +1195,18 @@ _NAMED_TYPE_INFO = {
       'GL_SCANOUT_CHROMIUM'
     ],
   },
+  'ValueBufferTarget': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_SUBSCRIBED_VALUES_BUFFER_CHROMIUM',
+    ],
+  },
+  'SubscriptionTarget': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_MOUSE_POSITION_CHROMIUM',
+    ],
+  },
   'VertexAttribType': {
     'type': 'GLenum',
     'valid': [
@@ -1448,6 +1460,57 @@ _FUNCTION_INFO = {
     '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',
@@ -1807,14 +1870,6 @@ _FUNCTION_INFO = {
     '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',