Remove bzip2 decoding support completely.

net/base/bzip2_filter.cc

Index: net/base/bzip2_filter.cc
===================================================================
--- net/base/bzip2_filter.cc	(revision 33986)
+++ net/base/bzip2_filter.cc	(working copy)
@@ -1,99 +0,0 @@
-// Copyright (c) 2006-2008 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 "net/base/bzip2_filter.h"
-
-BZip2Filter::BZip2Filter(const FilterContext& filter_context)
-    : Filter(filter_context),
-      decoding_status_(DECODING_UNINITIALIZED),
-      bzip2_data_stream_(NULL) {
-}
-
-BZip2Filter::~BZip2Filter() {
-  if (bzip2_data_stream_.get() &&
-      decoding_status_ != DECODING_UNINITIALIZED) {
-    BZ2_bzDecompressEnd(bzip2_data_stream_.get());
-  }
-}
-
-bool BZip2Filter::InitDecoding(bool use_small_memory) {
-  if (decoding_status_ != DECODING_UNINITIALIZED)
-    return false;
-
-  // Initialize zlib control block
-  bzip2_data_stream_.reset(new bz_stream);
-  if (!bzip2_data_stream_.get())
-    return false;
-  memset(bzip2_data_stream_.get(), 0, sizeof(bz_stream));
-
-  int result = BZ2_bzDecompressInit(bzip2_data_stream_.get(),
-                                    0,
-                                    use_small_memory ? 1 : 0);
-
-  if (result != BZ_OK)
-    return false;
-
-  decoding_status_ = DECODING_IN_PROGRESS;
-  return true;
-}
-
-Filter::FilterStatus BZip2Filter::ReadFilteredData(char* dest_buffer,
-                                                   int* dest_len) {
-  Filter::FilterStatus status = Filter::FILTER_ERROR;
-
-  // check output
-  if (!dest_buffer || !dest_len || *dest_len <= 0)
-    return status;
-
-  if (DECODING_DONE == decoding_status_) {
-    // this logic just follow gzip_filter, which be used to deal wth some
-    // server might send extra data after finish sending compress data
-    return CopyOut(dest_buffer, dest_len);
-  }
-
-  if (decoding_status_ != DECODING_IN_PROGRESS)
-    return status;
-
-  // Make sure we have valid input data
-  if (!next_stream_data_ || stream_data_len_ <= 0) {
-    *dest_len = 0;
-    return Filter::FILTER_NEED_MORE_DATA;
-  }
-
-  // Fill in bzip2 control block
-  int ret, output_len = *dest_len;
-  *dest_len = 0;
-
-  bzip2_data_stream_->next_in = next_stream_data_;
-  bzip2_data_stream_->avail_in = stream_data_len_;
-  bzip2_data_stream_->next_out = dest_buffer;
-  bzip2_data_stream_->avail_out = output_len;
-
-  ret = BZ2_bzDecompress(bzip2_data_stream_.get());
-
-  // get real output length, rest data and rest data length
-  *dest_len = output_len - bzip2_data_stream_->avail_out;
-
-  if (0 == bzip2_data_stream_->avail_in) {
-    next_stream_data_ = NULL;
-    stream_data_len_ = 0;
-  } else {
-    next_stream_data_ = bzip2_data_stream_->next_in;
-    stream_data_len_ = bzip2_data_stream_->avail_in;
-  }
-
-  if (BZ_OK == ret) {
-    if (stream_data_len_)
-      status = Filter::FILTER_OK;
-    else
-      status = Filter::FILTER_NEED_MORE_DATA;
-  } else if (BZ_STREAM_END == ret) {
-    status = Filter::FILTER_DONE;
-    decoding_status_ = DECODING_DONE;
-  } else {
-    decoding_status_ = DECODING_ERROR;
-  }
-
-  return status;
-}