Even more reordering the methods in headers and implementation in net/.

net/base/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.
 //
 // Filter performs filtering on data streams. Sample usage:
 //
 //   IStream* pre_filter_source;
 //   ...
 //   Filter* filter = Filter::Factory(filter_type, size);
 //   int pre_filter_data_len = filter->stream_buffer_size();
@@ skipping 181 matching lines @@
   // to the list.  This includes handling known bugs in the Apache server (where
   // redundant gzip encoding is specified), as well as issues regarding SDCH
   // encoding, where various proxies and anti-virus products modify or strip the
   // encodings.  These fixups require context, which includes whether this
   // response was made to an SDCH request (i.e., an available dictionary was
   // advertised in the GET), as well as the mime type of the content.
   static void FixupEncodingTypes(const FilterContext& filter_context,
                                  std::vector<FilterType>* encoding_types);
 
  protected:
+  FRIEND_TEST_ALL_PREFIXES(SdchFilterTest, ContentTypeId);
+
   explicit Filter(const FilterContext& filter_context);
 
-  FRIEND_TEST_ALL_PREFIXES(SdchFilterTest, ContentTypeId);
   // Filters the data stored in stream_buffer_ and writes the output into the
   // dest_buffer passed in.
   //
   // Upon entry, *dest_len is the total size (in number of chars) of the
   // destination buffer. Upon exit, *dest_len is the actual number of chars
   // written into the destination buffer.
   //
   // This function will fail if there is no pre-filter data in the
   // stream_buffer_. On the other hand, *dest_len can be 0 upon successful
   // return. For example, a decoding filter may process some pre-filter data
@@ skipping 45 matching lines @@
 
   // Context data from the owner of this filter.  Some filters need additional
   // context information (mime type, etc.) to properly function, and they access
   // this data via this reference member.
   const FilterContext& filter_context_;
 
   DISALLOW_COPY_AND_ASSIGN(Filter);
 };
 
 #endif  // NET_BASE_FILTER_H__