[Autofill] No longer pass FormStructure pointers in ParseQueryResponse.

components/autofill/core/browser/autofill_manager.h

 // Copyright 2013 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_MANAGER_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 230 matching lines @@
 
   // Exposed for testing.
   void set_payments_client(payments::PaymentsClient* payments_client) {
     payments_client_.reset(payments_client);
   }
 
  private:
   // AutofillDownloadManager::Observer:
   void OnLoadedServerPredictions(
       const std::string& response_xml,
-      const std::vector<FormStructure*>& queried_forms) override;
+      const std::vector<std::string>& form_signatures) override;
 
   // CardUnmaskDelegate:
   void OnUnmaskResponse(const UnmaskResponse& response) override;
   void OnUnmaskPromptClosed() override;
 
   // payments::PaymentsClientDelegate:
   IdentityProvider* GetIdentityProvider() override;
   void OnDidGetRealPan(AutofillClient::PaymentsRpcResult result,
                        const std::string& real_pan) override;
   void OnDidGetUploadDetails(
@@ skipping 272 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest,
                            DontSaveCvcInAutocompleteHistory);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, DontOfferToSavePaymentsCard);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, FillInUpdatedExpirationDate);
   DISALLOW_COPY_AND_ASSIGN(AutofillManager);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_