Update from https://crrev.com/314320

gpu/command_buffer/client/gles2_c_lib_autogen.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
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 163 matching lines @@
                             GLint level,
                             GLint xoffset,
                             GLint yoffset,
                             GLint x,
                             GLint y,
                             GLsizei width,
                             GLsizei height) {
   gles2::GetGLContext()->CopyTexSubImage2D(target, level, xoffset, yoffset, x,
                                            y, width, height);
 }
+void GLES2CopyTexSubImage3D(GLenum target,
+                            GLint level,
+                            GLint xoffset,
+                            GLint yoffset,
+                            GLint zoffset,
+                            GLint x,
+                            GLint y,
+                            GLsizei width,
+                            GLsizei height) {
+  gles2::GetGLContext()->CopyTexSubImage3D(target, level, xoffset, yoffset,
+                                           zoffset, x, y, width, height);
+}
 GLuint GLES2CreateProgram() {
   return gles2::GetGLContext()->CreateProgram();
 }
 GLuint GLES2CreateShader(GLenum type) {
   return gles2::GetGLContext()->CreateShader(type);
 }
 void GLES2CullFace(GLenum mode) {
   gles2::GetGLContext()->CullFace(mode);
 }
 void GLES2DeleteBuffers(GLsizei n, const GLuint* buffers) {
@@ skipping 463 matching lines @@
                         GLsizei width,
                         GLsizei height,
                         GLsizei depth,
                         GLenum format,
                         GLenum type,
                         const void* pixels) {
   gles2::GetGLContext()->TexSubImage3D(target, level, xoffset, yoffset, zoffset,
                                        width, height, depth, format, type,
                                        pixels);
 }
+void GLES2TransformFeedbackVaryings(GLuint program,
+                                    GLsizei count,
+                                    const char* const* varyings,
+                                    GLenum buffermode) {
+  gles2::GetGLContext()->TransformFeedbackVaryings(program, count, varyings,
+                                                   buffermode);
+}
 void GLES2Uniform1f(GLint location, GLfloat x) {
   gles2::GetGLContext()->Uniform1f(location, x);
 }
 void GLES2Uniform1fv(GLint location, GLsizei count, const GLfloat* v) {
   gles2::GetGLContext()->Uniform1fv(location, count, v);
 }
 void GLES2Uniform1i(GLint location, GLint x) {
   gles2::GetGLContext()->Uniform1i(location, x);
 }
 void GLES2Uniform1iv(GLint location, GLsizei count, const GLint* v) {
@@ skipping 680 matching lines @@
     },
     {
      "glCopyTexImage2D",
      reinterpret_cast<GLES2FunctionPointer>(glCopyTexImage2D),
     },
     {
      "glCopyTexSubImage2D",
      reinterpret_cast<GLES2FunctionPointer>(glCopyTexSubImage2D),
     },
     {
+     "glCopyTexSubImage3D",
+     reinterpret_cast<GLES2FunctionPointer>(glCopyTexSubImage3D),
+    },
+    {
      "glCreateProgram",
      reinterpret_cast<GLES2FunctionPointer>(glCreateProgram),
     },
     {
      "glCreateShader",
      reinterpret_cast<GLES2FunctionPointer>(glCreateShader),
     },
     {
      "glCullFace",
      reinterpret_cast<GLES2FunctionPointer>(glCullFace),
@@ skipping 437 matching lines @@
     },
     {
      "glTexSubImage2D",
      reinterpret_cast<GLES2FunctionPointer>(glTexSubImage2D),
     },
     {
      "glTexSubImage3D",
      reinterpret_cast<GLES2FunctionPointer>(glTexSubImage3D),
     },
     {
+     "glTransformFeedbackVaryings",
+     reinterpret_cast<GLES2FunctionPointer>(glTransformFeedbackVaryings),
+    },
+    {
      "glUniform1f",
      reinterpret_cast<GLES2FunctionPointer>(glUniform1f),
     },
     {
      "glUniform1fv",
      reinterpret_cast<GLES2FunctionPointer>(glUniform1fv),
     },
     {
      "glUniform1i",
      reinterpret_cast<GLES2FunctionPointer>(glUniform1i),
@@ skipping 504 matching lines @@
      reinterpret_cast<GLES2FunctionPointer>(glBlendBarrierKHR),
     },
     {
      NULL,
      NULL,
     },
 };
 
 }  // namespace gles2
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_C_LIB_AUTOGEN_H_