Use FilterContext to allow filters to access URLRequestJob data...

net/base/gzip_filter.h

 // 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.
 
 // GZipFilter applies gzip and deflate content encoding/decoding to a data
 // stream. As specified by HTTP 1.1, with gzip encoding the content is
 // wrapped with a gzip header, and with deflate encoding the content is in
 // a raw, headerless DEFLATE stream.
 //
 // Internally GZipFilter uses zlib inflate to do decoding.
 //
 // GZipFilter is a subclass of Filter. See the latter's header file filter.h
 // for sample usage.
 
 #ifndef NET_BASE_GZIP_FILTER_H__
 #define NET_BASE_GZIP_FILTER_H__
 
 #include "base/scoped_ptr.h"
 #include "net/base/filter.h"
 
 class GZipHeader;
 typedef struct z_stream_s z_stream;
 
 class GZipFilter : public Filter {
  public:
-  GZipFilter();
+  explicit GZipFilter(const FilterContext& filter_context);
 
   virtual ~GZipFilter();
 
   // Initializes filter decoding mode and internal control blocks.
   // Parameter filter_type specifies the type of filter, which corresponds to
   // either gzip or deflate decoding. The function returns true if success and
   // false otherwise.
   // The filter can only be initialized once.
   bool InitDecoding(Filter::FilterType filter_type);
 
@@ skipping 97 matching lines @@
   // content is indeed really gzipped result of sdch :-/.
   // If this flag is set, then we will revert to being a pass through filter if
   // we don't get a valid gzip header.
   bool possible_sdch_pass_through_;
 
   DISALLOW_EVIL_CONSTRUCTORS(GZipFilter);
 };
 
 #endif  // NET_BASE_GZIP_FILTER_H__