[Password Generation] Sends CSS classes inside autofill proto

components/autofill/core/browser/autofill_field.h

 // Copyright 2013 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 COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_FIELD_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_FIELD_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 157 matching lines @@
   // a common prefix shared with other fields). Will be used for heuristics
   // parsing.
   base::string16 parseable_name_;
 
   // The type of password generation event, if it happened.
   AutofillUploadContents::Field::PasswordGenerationType generation_type_;
 
   // The outcome of HTML parsing based form classifier.
   AutofillUploadContents::Field::FormClassifierOutcome form_classifier_outcome_;
 
+  // The value of the class attribute on the field, if present.
+  base::string16 css_classes_;
+
   DISALLOW_COPY_AND_ASSIGN(AutofillField);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_FIELD_H_