Add histograms for a number of hacks in the HTTP header parsing logic.

net/http/http_stream_parser.h

 // Copyright (c) 2012 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.
 
 #ifndef NET_HTTP_HTTP_STREAM_PARSER_H_
 #define NET_HTTP_HTTP_STREAM_PARSER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 142 matching lines @@
   int DoReadBody();
   int DoReadBodyComplete(int result);
 
   // This handles most of the logic for DoReadHeadersComplete.
   int HandleReadHeaderResult(int result);
 
   // Examines |read_buf_| to find the start and end of the headers. If they are
   // found, parse them with DoParseResponseHeaders().  Return the offset for
   // the end of the headers, or -1 if the complete headers were not found, or
   // with a net::Error if we encountered an error during parsing.
-  int ParseResponseHeaders();
+  int FindAndParseResponseHeaders();
 
   // Parse the headers into response_.  Returns OK on success or a net::Error on
   // failure.
-  int DoParseResponseHeaders(int end_of_header_offset);
+  int ParseResponseHeaders(int end_of_header_offset);
 
   // Examine the parsed headers to try to determine the response body size.
   void CalculateResponseBodySize();
 
   // Next state of the request, when the current one completes.
   State io_state_;
 
   // The request to send.
   const HttpRequestInfo* request_;
 
@@ skipping 70 matching lines @@
   int upload_error_;
 
   base::WeakPtrFactory<HttpStreamParser> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpStreamParser);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_PARSER_H_