Differentiate between ADD and CHANGED when adding new autofill entries.

chrome/browser/webdata/web_database.h

 // Copyright (c) 2009 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 CHROME_BROWSER_WEBDATA_WEB_DATABASE_H_
 #define CHROME_BROWSER_WEBDATA_WEB_DATABASE_H_
 
 #include <vector>
 
 #include "app/sql/connection.h"
@@ skipping 112 matching lines @@
   // the 'Never for this site' button.
   bool GetAllLogins(std::vector<webkit_glue::PasswordForm*>* forms,
                     bool include_blacklisted);
 
   //////////////////////////////////////////////////////////////////////////////
   //
   // Autofill
   //
   //////////////////////////////////////////////////////////////////////////////
 
-  // Records the form elements in |elements| in the database in the autofill
-  // table.
-  bool AddFormFieldValues(const std::vector<webkit_glue::FormField>& elements);
+  // Records the form elements in |elements| in the database in the
+  // autofill table.  A list of all added and updated autofill entries
+  // is returned in the changes out parameter.
+  bool AddFormFieldValues(const std::vector<webkit_glue::FormField>& elements,
+                          std::vector<AutofillChange>* changes);
 
-  // Records a single form element in in the database in the autofill table.
-  bool AddFormFieldValue(const webkit_glue::FormField& element);
+  // Records a single form element in in the database in the autofill
+  // table. A list of all added and updated autofill entries is
+  // returned in the changes out parameter.
+  bool AddFormFieldValue(const webkit_glue::FormField& element,
+                         std::vector<AutofillChange>* changes);
 
   // Retrieves a vector of all values which have been recorded in the autofill
   // table as the value in a form element with name |name| and which start with
   // |prefix|.  The comparison of the prefix is case insensitive.
   bool GetFormValuesForElementName(const string16& name,
                                    const string16& prefix,
                                    std::vector<string16>* values,
                                    int limit);
 
   // Removes rows from autofill_dates if they were created on or after
@@ skipping 52 matching lines @@
   bool SetWebAppImage(const GURL& url, const SkBitmap& image);
   bool GetWebAppImages(const GURL& url, std::vector<SkBitmap>* images);
 
   bool SetWebAppHasAllImages(const GURL& url, bool has_all_images);
   bool GetWebAppHasAllImages(const GURL& url);
 
   bool RemoveWebApp(const GURL& url);
 
  private:
   FRIEND_TEST(WebDatabaseTest, Autofill);
+  FRIEND_TEST(WebDatabaseTest, Autofill_AddChanges);
   FRIEND_TEST(WebDatabaseTest, Autofill_RemoveBetweenChanges);
 
   // Methods for adding autofill entries at a specified time.  For
   // testing only.
   bool AddFormFieldValuesTime(
       const std::vector<webkit_glue::FormField>& elements,
+      std::vector<AutofillChange>* changes,
       base::Time time);
   bool AddFormFieldValueTime(const webkit_glue::FormField& element,
+                             std::vector<AutofillChange>* changes,
                              base::Time time);
 
   // Removes empty values for autofill that were incorrectly stored in the DB
   // (see bug http://crbug.com/6111).
   // TODO(jcampan): http://crbug.com/7564 remove when we think all users have
   //                run this code.
   bool ClearAutofillEmptyValueElements();
 
   bool InitKeywordsTable();
   bool InitLoginsTable();
   bool InitAutofillTable();
   bool InitAutofillDatesTable();
   bool InitWebAppIconsTable();
   bool InitWebAppsTable();
 
   void MigrateOldVersionsAsNeeded();
 
   sql::Connection db_;
   sql::MetaTable meta_table_;
 
   DISALLOW_COPY_AND_ASSIGN(WebDatabase);
 };
 
 #endif  // CHROME_BROWSER_WEBDATA_WEB_DATABASE_H_