[Password Generation] Use signatures for form matching

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

 // 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.
 
 #include "components/autofill/content/public/cpp/autofill_types_struct_traits.h"
 
 #include "base/i18n/rtl.h"
 #include "ipc/ipc_message_utils.h"
 #include "url/mojo/origin_struct_traits.h"
 #include "url/mojo/url_gurl_struct_traits.h"
@@ skipping 495 matching lines @@
       data.is_possible_change_password_form();
 
   return true;
 }
 
 // static
 bool StructTraits<mojom::PasswordFormGenerationDataDataView,
                   PasswordFormGenerationData>::
     Read(mojom::PasswordFormGenerationDataDataView data,
          PasswordFormGenerationData* out) {
-  if (!data.ReadName(&out->name) || !data.ReadAction(&out->action) ||
-      !data.ReadGenerationField(&out->generation_field))
-    return false;
-
+  out->form_signature = data.form_signature();
+  out->field_signature = data.field_signature();
   return true;
 }
 
 // static
 bool StructTraits<mojom::PasswordFormDataView, PasswordForm>::Read(
     mojom::PasswordFormDataView data,
     PasswordForm* out) {
   if (!data.ReadScheme(&out->scheme) ||
       !data.ReadSignonRealm(&out->signon_realm) ||
       !data.ReadOriginWithPath(&out->origin) ||
@@ skipping 130 matching lines @@
   if (keys.size() != values.size())
     return false;
   out->clear();
   for (size_t i = 0; i < keys.size(); ++i)
     out->insert({keys[i], values[i]});
 
   return true;
 }
 
 }  // namespace mojo