[Password Generation] Use signatures for form matching

components/autofill/content/public/cpp/autofill_types_struct_traits.h

 // Copyright 2016 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_CONTENT_PUBLIC_INTERFACES_AUTOFILL_TYPES_STRUCT_TRAITS_H_
 #define COMPONENTS_AUTOFILL_CONTENT_PUBLIC_INTERFACES_AUTOFILL_TYPES_STRUCT_TRAITS_H_
 
 #include <utility>
 
 #include "base/strings/string16.h"
@@ skipping 347 matching lines @@
     return r.is_possible_change_password_form;
   }
 
   static bool Read(autofill::mojom::PasswordFormFillDataDataView data,
                    autofill::PasswordFormFillData* out);
 };
 
 template <>
 struct StructTraits<autofill::mojom::PasswordFormGenerationDataDataView,
                     autofill::PasswordFormGenerationData> {
-  static const base::string16& name(
+  static uint64_t form_signature(
       const autofill::PasswordFormGenerationData& r) {
-    return r.name;
+    return r.form_signature;
   }
 
-  static const GURL& action(const autofill::PasswordFormGenerationData& r) {
-    return r.action;
-  }
-
-  static const autofill::FormFieldData& generation_field(
+  static uint32_t field_signature(
       const autofill::PasswordFormGenerationData& r) {
-    return r.generation_field;
+    return r.field_signature;
   }
 
   static bool Read(autofill::mojom::PasswordFormGenerationDataDataView data,
                    autofill::PasswordFormGenerationData* out);
 };
 
 template <>
 struct StructTraits<autofill::mojom::PasswordFormDataView,
                     autofill::PasswordForm> {
   static autofill::PasswordForm::Scheme scheme(
@@ skipping 196 matching lines @@
     return static_cast<KeysValuesPair*>(context)->second;
   }
 
   static bool Read(autofill::mojom::FormsPredictionsMapDataView data,
                    autofill::FormsPredictionsMap* out);
 };
 
 }  // namespace mojo
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_PUBLIC_INTERFACES_AUTOFILL_TYPES_STRUCT_TRAITS_H_