Create an AutofillBackend interface

components/autofill/browser/webdata/autofill_webdata_service.cc

Index: components/autofill/browser/webdata/autofill_webdata_service.cc
diff --git a/components/autofill/browser/webdata/autofill_webdata_service.cc b/components/autofill/browser/webdata/autofill_webdata_service.cc
index 217f2651e9c105d7b24d829160564ef98e3b3521..09428a67592627a3f099939d73e14c22eac6fa25 100644
--- a/components/autofill/browser/webdata/autofill_webdata_service.cc
+++ b/components/autofill/browser/webdata/autofill_webdata_service.cc
@@ -37,26 +37,41 @@ void AutofillWebDataService::NotifyOfMultipleAutofillChanges(
            make_scoped_refptr(web_data_service)));
 }
 
+

[Ilya Sherman, 2013/05/07 00:02:43]

nit: Spurious newline

[Cait (Slow), 2013/05/07 19:22:07]

Done.

 AutofillWebDataService::AutofillWebDataService(
     scoped_refptr<WebDatabaseService> wdbs,
     const ProfileErrorCallback& callback)
     : WebDataServiceBase(wdbs, callback),
+      weak_ptr_factory_(this),
       autofill_backend_(new AutofillWebDataBackend()) {
 }
 
 AutofillWebDataService::AutofillWebDataService()
     : WebDataServiceBase(NULL,
                          WebDataServiceBase::ProfileErrorCallback()),
+      weak_ptr_factory_(this),
       autofill_backend_(new AutofillWebDataBackend()) {
 }
 
 void AutofillWebDataService::ShutdownOnUIThread() {
+  weak_ptr_factory_.InvalidateWeakPtrs();
   BrowserThread::PostTask(
     BrowserThread::DB, FROM_HERE,
     base::Bind(&AutofillWebDataService::ShutdownOnDBThread, this));
   WebDataServiceBase::ShutdownOnUIThread();
 }
 
+void AutofillWebDataService::GetDelegateOnDB(
+    const DelegateOnDBCallback& del_callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  base::Closure on_changed_callback = Bind(
+      &AutofillWebDataService::NotifyAutofillMultipleChangedOnUIThread,
+      weak_ptr_factory_.GetWeakPtr());
+  wdbs_->GetDatabaseOnDB(
+      Bind(&AutofillWebDataBackend::GetDelegate, autofill_backend_,
+           del_callback, on_changed_callback));
+}
+
 void AutofillWebDataService::AddFormFields(
     const std::vector<FormFieldData>& fields) {
   wdbs_->ScheduleDBTask(FROM_HERE,
@@ -171,6 +186,7 @@ void AutofillWebDataService::RemoveObserver(
     autofill_backend_->RemoveObserver(observer);
 }
 
+

[Jói, 2013/05/06 23:08:39]

spurious added blank line?

[Cait (Slow), 2013/05/07 19:22:07]

Done.

 void AutofillWebDataService::AddObserver(
     AutofillWebDataServiceObserverOnUIThread* observer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));