Add CopyTexSubImage3D to GPU command buffer.

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 1163 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 961 matching lines @@
      reinterpret_cast<GLES2FunctionPointer>(glBlendBarrierKHR),
     },
     {
      NULL,
      NULL,
     },
 };
 
 }  // namespace gles2
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_C_LIB_AUTOGEN_H_