Use filter context to track stats better in SDCH filtering

net/base/sdch_filter_unittest.cc

 // 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 <limits.h>
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 729 matching lines @@
 
   std::string sdch_compressed(NewSdchCompressedData(dictionary));
 
   // Use Gzip to compress the sdch sdch_compressed data.
   std::string gzip_compressed_sdch = gzip_compress(sdch_compressed);
 
   // Only claim to have sdch content, but really use the gzipped sdch content.
   // System should automatically add the missing (optional) gzip.
   std::vector<Filter::FilterType> filter_types;
   filter_types.push_back(Filter::FILTER_TYPE_SDCH);
-  Filter::FixupEncodingTypes(true, "anything/mime", &filter_types);
+
+  const int kInputBufferSize(100);
+  MockFilterContext filter_context(kInputBufferSize);
+  filter_context.SetMimeType("anything/mime");
+  filter_context.SetSdchResponse(true);
+  Filter::FixupEncodingTypes(filter_context, &filter_types);
 
   // First try with a large buffer (larger than test input, or compressed data).
-  const int kInputBufferSize(100);
-  MockFilterContext filter_context(kInputBufferSize);
   filter_context.SetURL(url);
   scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context));
 
 
   // Verify that chained filter is waiting for data.
   char tiny_output_buffer[10];
   int tiny_output_size = sizeof(tiny_output_buffer);
   EXPECT_EQ(Filter::FILTER_NEED_MORE_DATA,
             filter->ReadData(tiny_output_buffer, &tiny_output_size));
 
@@ skipping 190 matching lines @@
 
 TEST_F(SdchFilterTest, DictionaryTooLarge) {
   std::string dictionary_domain(".google.com");
   std::string dictionary_text(NewSdchDictionary(dictionary_domain));
 
   dictionary_text.append(
       SdchManager::kMaxDictionarySize + 1 - dictionary_text.size(), ' ');
   EXPECT_FALSE(sdch_manager_->AddSdchDictionary(dictionary_text,
               GURL("http://" + dictionary_domain)));
 }