Add logging for submitted Autofill field types.

chrome/browser/autofill/form_structure.cc

 // Copyright (c) 2011 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/autofill/form_structure.h"
 
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
@@ skipping 337 matching lines @@
                                EncodeFieldTypes(available_field_types).c_str());
 
   if (!EncodeFormRequest(FormStructure::UPLOAD, &autofill_request_xml))
     return false;  // Malformed form, skip it.
 
   // Obtain the XML structure as a string.
   encoded_xml->clear();
   *encoded_xml = kXMLDeclaration;
   *encoded_xml += autofill_request_xml.Str().c_str();
 
+  // To enable this logging, run with the flag --vmodule="form_structure=2".
+  VLOG(2) << "\n" << *encoded_xml;
+
   return true;
 }
 
 // static
 bool FormStructure::EncodeQueryRequest(
     const ScopedVector<FormStructure>& forms,
     std::vector<std::string>* encoded_signatures,
     std::string* encoded_xml) {
   DCHECK(encoded_signatures);
   DCHECK(encoded_xml);
@@ skipping 592 matching lines @@
     if (current_type != UNKNOWN_TYPE && already_saw_current_type) {
       // We reached the end of a section, so start a new section.
       seen_types.clear();
       current_section = (*field)->unique_name();
     }
 
     seen_types.insert(current_type);
     (*field)->set_section(current_section);
   }
 }