Refactor notifications of chrome/browser/webdata

chrome/browser/webdata/web_data_service.h

Index: chrome/browser/webdata/web_data_service.h
diff --git a/chrome/browser/webdata/web_data_service.h b/chrome/browser/webdata/web_data_service.h
index 6bb2c7db9cd209f6fef499a5b79180e21914febf..645c48bc62e5f49c2565e78fdbd1cdc829a3feaf 100644
--- a/chrome/browser/webdata/web_data_service.h
+++ b/chrome/browser/webdata/web_data_service.h
@@ -11,15 +11,15 @@
 
 #include <map>
 #include <string>
-#include <vector>
 
 #include "base/callback_forward.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
 #include "base/memory/ref_counted.h"
+#include "base/observer_list.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "base/synchronization/lock.h"
-#include "chrome/browser/api/webdata/autofill_web_data_service.h"
+#include "chrome/browser/api/webdata/autofill_web_data.h"
 #include "chrome/browser/api/webdata/web_data_results.h"
 #include "chrome/browser/api/webdata/web_data_service_base.h"
 #include "chrome/browser/api/webdata/web_data_service_consumer.h"
@@ -29,12 +29,15 @@
 #include "chrome/browser/webdata/keyword_table.h"
 #include "chrome/browser/webdata/web_data_request_manager.h"
 #include "chrome/browser/webdata/web_database.h"
+#include "components/autofill/common/form_field_data.h"
 #include "content/public/browser/browser_thread.h"
 #include "sql/init_status.h"
 
 class AutocompleteSyncableService;
 class AutofillChange;
+class AutofillProfile;
 class AutofillProfileSyncableService;
+class CreditCard;
 struct DefaultWebIntentService;
 class GURL;
 #if defined(OS_WIN)
@@ -69,8 +72,6 @@ struct WebIntentServiceData;
 //
 ////////////////////////////////////////////////////////////////////////////////
 
-typedef std::vector<AutofillChange> AutofillChangeList;
-
 typedef base::Callback<scoped_ptr<WDTypedResult>(void)> ResultTask;
 
 // Result from GetWebAppImages.
@@ -98,6 +99,7 @@ struct WDKeywordsResult {
 };
 
 class WebDataServiceConsumer;
+class WebDataServiceObserver;
 
 class WebDataService
     : public WebDataServiceBase,
@@ -108,7 +110,6 @@ class WebDataService
 
   // WebDataServiceBase implementation.
   virtual void CancelRequest(Handle h) OVERRIDE;
-  virtual content::NotificationSource GetNotificationSource() OVERRIDE;
 
   // Notifies listeners on the UI thread that multiple changes have been made to
   // to Autofill records of the database.
@@ -305,6 +306,9 @@ class WebDataService
   virtual AutocompleteSyncableService*
       GetAutocompleteSyncableService() const;
 
+  void AddObserver(WebDataServiceObserver* observer);
+  void RemoveObserver(WebDataServiceObserver* observer);
+
  protected:
   friend class TemplateURLServiceTest;
   friend class TemplateURLServiceTestingProfile;
@@ -318,6 +322,9 @@ class WebDataService
   // The following methods are only invoked in the web data service thread.
   //
   //////////////////////////////////////////////////////////////////////////////
+
+  void NotifyDatabaseLoadedOnUIThread();
+
  private:
   friend struct content::BrowserThread::DeleteOnThread<
       content::BrowserThread::UI>;
@@ -330,7 +337,6 @@ class WebDataService
   void ShutdownSyncableServices();
 
   void DBInitFailed(sql::InitStatus sql_status);
-  void NotifyDatabaseLoadedOnUIThread();
   void OnDatabaseInit(sql::InitStatus status);
 
   //////////////////////////////////////////////////////////////////////////////
@@ -445,6 +451,7 @@ class WebDataService
   WebDatabase::State RemoveAutofillProfilesAndCreditCardsModifiedBetweenImpl(
       const base::Time& delete_begin, const base::Time& delete_end,
       WebDatabase* db);
+  void NotifyAutofillMultipleChangedOnUIThread();
 
   // Callbacks to ensure that sensitive info is destroyed if request is
   // cancelled.
@@ -465,6 +472,8 @@ class WebDataService
   AutocompleteSyncableService* autocomplete_syncable_service_;
   AutofillProfileSyncableService* autofill_profile_syncable_service_;
 
+  ObserverList<WebDataServiceObserver> observer_list_;
+
   DISALLOW_COPY_AND_ASSIGN(WebDataService);
 };