Update from https://crrev.com/316786

ui/gl/gl_bindings_api_autogen_gl.h

 // Copyright 2014 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.
 //
 // This file is auto-generated from
 // ui/gl/generate_bindings.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 379 matching lines @@
                                 GLenum pname,
                                 GLint* params) override;
 void glGetTexParameterfvFn(GLenum target,
                            GLenum pname,
                            GLfloat* params) override;
 void glGetTexParameterivFn(GLenum target, GLenum pname, GLint* params) override;
 void glGetTransformFeedbackVaryingFn(GLuint program,
                                      GLuint index,
                                      GLsizei bufSize,
                                      GLsizei* length,
+                                     GLsizei* size,
                                      GLenum* type,
                                      char* name) override;
 void glGetTranslatedShaderSourceANGLEFn(GLuint shader,
                                         GLsizei bufsize,
                                         GLsizei* length,
                                         char* source) override;
 GLuint glGetUniformBlockIndexFn(GLuint program,
                                 const char* uniformBlockName) override;
 void glGetUniformfvFn(GLuint program, GLint location, GLfloat* params) override;
 void glGetUniformIndicesFn(GLuint program,
@@ skipping 284 matching lines @@
                               GLsizei stride,
                               const void* ptr) override;
 void glVertexAttribPointerFn(GLuint indx,
                              GLint size,
                              GLenum type,
                              GLboolean normalized,
                              GLsizei stride,
                              const void* ptr) override;
 void glViewportFn(GLint x, GLint y, GLsizei width, GLsizei height) override;
 GLenum glWaitSyncFn(GLsync sync, GLbitfield flags, GLuint64 timeout) override;