Implement "Autofill form data" import for Firefox

components/autofill/core/browser/webdata/autofill_webdata_service.cc

Index: components/autofill/core/browser/webdata/autofill_webdata_service.cc
diff --git a/components/autofill/core/browser/webdata/autofill_webdata_service.cc b/components/autofill/core/browser/webdata/autofill_webdata_service.cc
index 9ba3fed5c8b31aca1e9d2db8eaebcb0b15aeece9..08f4c0334122cf02b4e0822ba8e72ff59319381a 100644
--- a/components/autofill/core/browser/webdata/autofill_webdata_service.cc
+++ b/components/autofill/core/browser/webdata/autofill_webdata_service.cc
@@ -129,6 +129,14 @@ WebDataServiceBase::Handle AutofillWebDataService::GetAutofillProfiles(
       consumer);
 }
 
+void AutofillWebDataService::UpdateAutofillEntries(
+    const std::vector<autofill::AutofillEntry>& autofill_entries) {
+  wdbs_->ScheduleDBTask(FROM_HERE,
+                        Bind(&AutofillWebDataBackendImpl::UpdateAutofillEntries,
+                             autofill_backend_,
+                             autofill_entries));
+}
+
 void AutofillWebDataService::AddCreditCard(const CreditCard& credit_card) {
   wdbs_->ScheduleDBTask(
       FROM_HERE,