Modify Copy{Sub}TextureCHROMIUM entry point to add level argument

gpu/command_buffer/client/gles2_interface_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 671 matching lines @@
 virtual void DescheduleUntilFinishedCHROMIUM() = 0;
 virtual void GetTranslatedShaderSourceANGLE(GLuint shader,
                                             GLsizei bufsize,
                                             GLsizei* length,
                                             char* source) = 0;
 virtual void PostSubBufferCHROMIUM(GLint x,
                                    GLint y,
                                    GLint width,
                                    GLint height) = 0;
 virtual void CopyTextureCHROMIUM(GLenum source_id,
+                                 GLint source_level,
                                  GLenum dest_id,
+                                 GLint dest_level,
                                  GLint internalformat,
                                  GLenum dest_type,
                                  GLboolean unpack_flip_y,
                                  GLboolean unpack_premultiply_alpha,
                                  GLboolean unpack_unmultiply_alpha) = 0;
 virtual void CopySubTextureCHROMIUM(GLenum source_id,
+                                    GLint source_level,
                                     GLenum dest_id,
+                                    GLint dest_level,
                                     GLint xoffset,
                                     GLint yoffset,
                                     GLint x,
                                     GLint y,
                                     GLsizei width,
                                     GLsizei height,
                                     GLboolean unpack_flip_y,
                                     GLboolean unpack_premultiply_alpha,
                                     GLboolean unpack_unmultiply_alpha) = 0;
 virtual void CompressedCopyTextureCHROMIUM(GLenum source_id,
@@ skipping 178 matching lines @@
     const GLfloat* transform) = 0;
 virtual void OverlayPromotionHintCHROMIUM(GLuint texture,
                                           GLboolean promotion_hint,
                                           GLint display_x,
                                           GLint display_y) = 0;
 virtual void SwapBuffersWithDamageCHROMIUM(GLint x,
                                            GLint y,
                                            GLint width,
                                            GLint height) = 0;
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_AUTOGEN_H_