Clean up a few unused globals.

net/base/filter.cc

 // Copyright (c) 2011 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/filter.h"
 
 #include "base/files/file_path.h"
 #include "base/strings/string_util.h"
 #include "net/base/gzip_filter.h"
 #include "net/base/io_buffer.h"
 #include "net/base/mime_util.h"
 #include "net/base/sdch_filter.h"
 
 namespace {
 
 // Filter types (using canonical lower case only):
 const char kDeflate[]      = "deflate";
 const char kGZip[]         = "gzip";
 const char kXGZip[]        = "x-gzip";
 const char kSdch[]         = "sdch";
 // compress and x-compress are currently not supported.  If we decide to support
 // them, we'll need the same mime type compatibility hack we have for gzip.  For
 // more information, see Firefox's nsHttpChannel::ProcessNormal.
-const char kCompress[]     = "compress";
-const char kXCompress[]    = "x-compress";
-const char kIdentity[]     = "identity";
-const char kUncompressed[] = "uncompressed";
 
 // Mime types:
 const char kApplicationXGzip[]     = "application/x-gzip";
 const char kApplicationGzip[]      = "application/gzip";
 const char kApplicationXGunzip[]   = "application/x-gunzip";
-const char kApplicationXCompress[] = "application/x-compress";
-const char kApplicationCompress[]  = "application/compress";
 const char kTextHtml[]             = "text/html";
 
 // Buffer size allocated when de-compressing data.
 const int kFilterBufSize = 32 * 1024;
 
 }  // namespace
 
 namespace net {
 
 FilterContext::~FilterContext() {
@@ skipping 352 matching lines @@
 
 void Filter::PushDataIntoNextFilter() {
   IOBuffer* next_buffer = next_filter_->stream_buffer();
   int next_size = next_filter_->stream_buffer_size();
   last_status_ = ReadFilteredData(next_buffer->data(), &next_size);
   if (FILTER_ERROR != last_status_)
     next_filter_->FlushStreamBuffer(next_size);
 }
 
 }  // namespace net