Revert of Implement content_decoder_tool.cc to decode offline any resources.

net/tools/content_decoder_tool/content_decoder_tool.cc

-// Copyright 2016 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.
-
-#include <iostream>
-
-#include "base/command_line.h"
-#include "net/base/io_buffer.h"
-#include "net/filter/filter.h"
-#include "net/filter/mock_filter_context.h"
-
-using net::Filter;
-
-namespace {
-
-// Print the command line help.
-void PrintHelp(const char* command_line_name) {
-  std::cout << command_line_name << " content_encoding [content_encoding]..."
-            << std::endl
-            << std::endl;
-  std::cout << "Decodes the stdin into the stdout using an content_encoding "
-            << "list given in arguments. This list is expected to be the "
-            << "Content-Encoding HTTP response header's value split by ','."
-            << std::endl;
-}
-
-}  // namespace
-
-int main(int argc, char* argv[]) {
-  base::CommandLine::Init(argc, argv);
-  const base::CommandLine& command_line =
-      *base::CommandLine::ForCurrentProcess();
-
-  std::vector<std::string> content_encodings;
-#if defined(OS_WIN)
-  base::CommandLine::StringVector wide_args = command_line.GetArgs();
-  for (const auto& arg : wide_args)
-    content_encodings.push_back(base::WideToUTF8(arg));
-#else
-  content_encodings = command_line.GetArgs();
-#endif
-
-  if (content_encodings.size() == 0) {
-    PrintHelp(argv[0]);
-    return 1;
-  }
-
-  std::vector<Filter::FilterType> filter_types;
-  for (const auto& content_encoding : content_encodings) {
-    Filter::FilterType filter_type =
-        Filter::ConvertEncodingToType(content_encoding);
-    if (filter_type == Filter::FILTER_TYPE_UNSUPPORTED) {
-      std::cerr << "Unsupported decoder '" << content_encoding << "'."
-                << std::endl;
-      return 1;
-    }
-    filter_types.push_back(filter_type);
-  }
-
-  net::MockFilterContext filter_context;
-  scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context));
-  if (!filter) {
-    std::cerr << "Couldn't create the decoder." << std::endl;
-    return 1;
-  }
-
-  net::IOBuffer* pre_filter_buf = filter->stream_buffer();
-  int pre_filter_buf_len = filter->stream_buffer_size();
-  while (std::cin) {
-    std::cin.read(pre_filter_buf->data(), pre_filter_buf_len);
-    int pre_filter_data_len = std::cin.gcount();
-    filter->FlushStreamBuffer(pre_filter_data_len);
-
-    while (true) {
-      int kPostFilterBufLen = 4096;
-      char post_filter_buf[kPostFilterBufLen];
-      int post_filter_data_len = kPostFilterBufLen;
-      Filter::FilterStatus filter_status =
-          filter->ReadData(post_filter_buf, &post_filter_data_len);
-      std::cout.write(post_filter_buf, post_filter_data_len);
-      if (filter_status == Filter::FILTER_ERROR) {
-        std::cerr << "Couldn't decode stdin." << std::endl;
-        return 1;
-      } else if (filter_status != Filter::FILTER_OK) {
-        break;
-      }
-    }
-  }
-
-  return 0;
-}