[Autofill] Only query for newly parsed forms

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 221 matching lines @@
   void SplitFrontendID(int frontend_id,
                        std::string* cc_backend_id,
                        std::string* profile_backend_id) const;
 
   ScopedVector<FormStructure>* form_structures() { return &form_structures_; }
 
   // Exposed for testing.
   AutofillExternalDelegate* external_delegate() {
     return external_delegate_;
   }
+  void set_download_manager(AutofillDownloadManager* manager) {

[Mathieu, 2015/09/29 18:35:18]

Went with this approach for testing, since the AutofillManager holds on to an
AutofillDownloadManager pointer, but is an argument to the constructor of
AutofillDownloadManager as well. Hence you can't add AutofillDownloadManager to
the [test] constructor of AutofillManager.

+    download_manager_.reset(manager);
+  }
 
  private:
   // AutofillDownloadManager::Observer:
   void OnLoadedServerPredictions(const std::string& response_xml) override;
 
   // CardUnmaskDelegate:
   void OnUnmaskResponse(const UnmaskResponse& response) override;
   void OnUnmaskPromptClosed() override;
 
   // wallet::RealPanWalletClient::Delegate:
@@ skipping 244 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest,
                            DontSaveCvcInAutocompleteHistory);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, DontOfferToSaveWalletCard);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, FillInUpdatedExpirationDate);
   DISALLOW_COPY_AND_ASSIGN(AutofillManager);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_