Deprecated upload_required in Autofill query request.

It will now default to USE_UPLOAD_RATES. We are planning to get rid of that field in the new API.

Change-Id: Idd7d7821d016ec13c0c7e5e03a26f94a52628d42
Reviewed-on: https://chromium-review.googlesource.com/c/1323706
Commit-Queue: Vincent Boisselle <vincb@chromium.org>
Reviewed-by: Roger McFarlane <rogerm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606456}

components/autofill/core/browser/form_structure.cc

@@ -287,7 +287,6 @@ HtmlFieldType FieldTypeFromAutocompleteAttributeValue(
 std::ostream& operator<<(
     std::ostream& out,
     const autofill::AutofillQueryResponseContents& response) {
-  out << "upload_required: " << response.upload_required();
   for (const auto& field : response.field()) {
     out << "\nautofill_type: " << field.overall_type_prediction();
   }
@@ -546,9 +545,6 @@ void FormStructure::ProcessQueryResponse(
   // Copy the field types into the actual form.
   auto current_field = response.field().begin();
   for (FormStructure* form : forms) {
-    form->upload_required_ =
-        response.upload_required() ? UPLOAD_REQUIRED : UPLOAD_NOT_REQUIRED;
-
     bool query_response_has_no_server_data = true;
     for (auto& field : form->fields_) {
       if (form->ShouldSkipField(*field))

components/autofill/core/browser/proto/server.proto

@@ -29,7 +29,7 @@ message AutofillQueryContents {
 // information.
 // Next available id: 10
 message AutofillQueryResponseContents {
-  optional bool upload_required = 1;
+  optional bool upload_required = 1 [deprecated = true];
   repeated group Field = 2 {
     required fixed32 overall_type_prediction = 3;
     // Detailed list of all possible predictions (including