[Autofill] No longer pass FormStructure pointers in ParseQueryResponse.

components/autofill/core/browser/autofill_download_manager.h

 // Copyright 2014 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_DOWNLOAD_MANAGER_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_DOWNLOAD_MANAGER_H_
 
 #include <stddef.h>
 #include <list>
 #include <map>
@@ skipping 20 matching lines @@
 
 // Handles getting and updating Autofill heuristics.
 class AutofillDownloadManager : public net::URLFetcherDelegate {
  public:
   enum RequestType { REQUEST_QUERY, REQUEST_UPLOAD, };
 
   // An interface used to notify clients of AutofillDownloadManager.
   class Observer {
    public:
     // Called when field type predictions are successfully received from the
-    // server. |response_xml| contains the server response for the
-    // |queried_forms|.
+    // server. |response_xml| contains the server response for the forms
+    // represented by |form_signatures|.
     virtual void OnLoadedServerPredictions(
         const std::string& response_xml,
-        const std::vector<FormStructure*>& queried_forms) = 0;
+        const std::vector<std::string>& form_signatures) = 0;
 
     // These notifications are used to help with testing.
     // Called when heuristic either successfully considered for upload and
     // not send or uploaded.
     virtual void OnUploadedPossibleFieldTypes() {}
     // Called when there was an error during the request.
     // |form_signature| - the signature of the requesting form.
     // |request_type| - type of request that failed.
     // |http_error| - HTTP error code.
     virtual void OnServerRequestError(const std::string& form_signature,
@@ skipping 114 matching lines @@
   double positive_upload_rate_;
   double negative_upload_rate_;
 
   // Needed for unit-test.
   int fetcher_id_for_unittest_;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_DOWNLOAD_MANAGER_H_