Use filter context to track stats better in SDCH filtering

chrome/browser/automation/url_request_mock_http_job.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 "chrome/browser/automation/url_request_mock_http_job.h"
 
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "net/base/net_util.h"
@@ skipping 50 matching lines @@
                                              const FilePath& file_path)
     : URLRequestFileJob(request, file_path) { }
 
 // Public virtual version.
 void URLRequestMockHTTPJob::GetResponseInfo(net::HttpResponseInfo* info) {
   // Forward to private const version.
   GetResponseInfoConst(info);
 }
 
 // Private const version.
-void URLRequestMockHTTPJob::GetResponseInfoConst(net::HttpResponseInfo* info) const {
+void URLRequestMockHTTPJob::GetResponseInfoConst(
+    net::HttpResponseInfo* info) const {
   std::wstring header_file = file_path_.ToWStringHack() + kMockHeaderFileSuffix;
   std::string raw_headers;
   if (!file_util::ReadFileToString(header_file, &raw_headers))
     return;
 
   // ParseRawHeaders expects \0 to end each header line.
   ReplaceSubstringsAfterOffset(&raw_headers, 0, "\n", std::string("\0", 1));
   info->headers = new net::HttpResponseHeaders(raw_headers);
 }
 
 bool URLRequestMockHTTPJob::GetMimeType(std::string* mime_type) const {
   net::HttpResponseInfo info;
   GetResponseInfoConst(&info);
   return info.headers && info.headers->GetMimeType(mime_type);
 }
 
 bool URLRequestMockHTTPJob::GetCharset(std::string* charset) {
   net::HttpResponseInfo info;
   GetResponseInfo(&info);
   return info.headers && info.headers->GetCharset(charset);
 }