Remove the "target" argument from CopyTextureChromium.

gpu/command_buffer/client/gles2_interface_stub_impl_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 894 matching lines @@
 void GLES2InterfaceStub::PostSubBufferCHROMIUM(GLint /* x */,
                                                GLint /* y */,
                                                GLint /* width */,
                                                GLint /* height */) {}
 void GLES2InterfaceStub::TexImageIOSurface2DCHROMIUM(GLenum /* target */,
                                                      GLsizei /* width */,
                                                      GLsizei /* height */,
                                                      GLuint /* ioSurfaceId */,
                                                      GLuint /* plane */) {}
 void GLES2InterfaceStub::CopyTextureCHROMIUM(
-    GLenum /* target */,
     GLenum /* source_id */,
     GLenum /* dest_id */,
     GLint /* internalformat */,
     GLenum /* dest_type */,
     GLboolean /* unpack_flip_y */,
     GLboolean /* unpack_premultiply_alpha */,
     GLboolean /* unpack_unmultiply_alpha */) {}
 void GLES2InterfaceStub::CopySubTextureCHROMIUM(
-    GLenum /* target */,
     GLenum /* source_id */,
     GLenum /* dest_id */,
     GLint /* xoffset */,
     GLint /* yoffset */,
     GLint /* x */,
     GLint /* y */,
     GLsizei /* width */,
     GLsizei /* height */,
     GLboolean /* unpack_flip_y */,
     GLboolean /* unpack_premultiply_alpha */,
@@ skipping 237 matching lines @@
     GLuint /* index */,
     const char* /* name */) {}
 void GLES2InterfaceStub::BindFragDataLocationEXT(GLuint /* program */,
                                                  GLuint /* colorNumber */,
                                                  const char* /* name */) {}
 GLint GLES2InterfaceStub::GetFragDataIndexEXT(GLuint /* program */,
                                               const char* /* name */) {
   return 0;
 }
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_STUB_IMPL_AUTOGEN_H_