[Autofill] No longer pass FormStructure pointers in ParseQueryResponse.

components/autofill/core/browser/autofill_download_manager.cc

Index: components/autofill/core/browser/autofill_download_manager.cc
diff --git a/components/autofill/core/browser/autofill_download_manager.cc b/components/autofill/core/browser/autofill_download_manager.cc
index 7676d1e88b108334584b62c90d85c6c60c327647..17ffec100d3063be83005ce038720c397ed7d036 100644
--- a/components/autofill/core/browser/autofill_download_manager.cc
+++ b/components/autofill/core/browser/autofill_download_manager.cc
@@ -65,7 +65,6 @@ GURL GetRequestUrl(AutofillDownloadManager::RequestType request_type) {
 
 struct AutofillDownloadManager::FormRequestData {
   std::vector<std::string> form_signatures;
-  std::vector<FormStructure*> queried_forms;
   RequestType request_type;
 };
 
@@ -108,7 +107,6 @@ bool AutofillDownloadManager::StartQueryRequest(
   std::string form_xml;
   FormRequestData request_data;
   if (!FormStructure::EncodeQueryRequest(forms, &request_data.form_signatures,
-                                         &request_data.queried_forms,
                                          &form_xml)) {
     return false;
   }
@@ -122,7 +120,7 @@ bool AutofillDownloadManager::StartQueryRequest(
              << "from the cache, form signatures: "
              << GetCombinedSignature(request_data.form_signatures);
     observer_->OnLoadedServerPredictions(query_data,
-                                         request_data.queried_forms);
+                                         request_data.form_signatures);
     return true;
   }
 
@@ -345,7 +343,7 @@ void AutofillDownloadManager::OnURLFetchComplete(
     if (it->second.request_type == AutofillDownloadManager::REQUEST_QUERY) {
       CacheQueryRequest(it->second.form_signatures, response_body);
       observer_->OnLoadedServerPredictions(response_body,
-                                           it->second.queried_forms);
+                                           it->second.form_signatures);
     } else {
       double new_positive_upload_rate = 0;
       double new_negative_upload_rate = 0;