Keep only base/extractor.[cc|h].

mi_exe_stub/x86_encoder/bcj2_encoder.h

-// Copyright 2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-//
-// Implementation taken from Bcj2Coder implementation in LZMA SDK and converted
-// to use std::string as the interface.
-
-#ifndef OMAHA_MI_EXE_STUB_X86_ENCODER_BCJ2_ENCODER_H_
-#define OMAHA_MI_EXE_STUB_X86_ENCODER_BCJ2_ENCODER_H_
-
-#include <string>
-
-namespace omaha {
-
-// TODO(omaha): this is currently a single-shot interface. The entire buffer
-// to be encoded must be loaded in memory. It'd be nice to make work in chunks.
-// TODO(omaha): consider converting this interface to use std::vector. The
-// reason std::string is used is for the auto-resize convenience.
-// All input/output parameters from this function are *binary* strings.
-// Use std::string::size() to get the length of the buffer. Do not use
-// std::string::c_str() on these strings.
-bool Bcj2Encode(const std::string& input,
-                std::string* main_output,
-                std::string* call_output,
-                std::string* jump_output,
-                std::string* misc_output);
-
-}  // namespace omaha
-
-#endif  // OMAHA_MI_EXE_STUB_X86_ENCODER_BCJ2_ENCODER_H_