Implement "Autofill form data" import for Firefox

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

Index: components/autofill/core/browser/webdata/autofill_webdata_backend_impl.cc
diff --git a/components/autofill/core/browser/webdata/autofill_webdata_backend_impl.cc b/components/autofill/core/browser/webdata/autofill_webdata_backend_impl.cc
index ad6c132a148410b6c4594658aa7d1885f0de357d..c46c7200237c8646552a84a481bc4655a3d23e8f 100644
--- a/components/autofill/core/browser/webdata/autofill_webdata_backend_impl.cc
+++ b/components/autofill/core/browser/webdata/autofill_webdata_backend_impl.cc
@@ -245,6 +245,19 @@ scoped_ptr<WDTypedResult> AutofillWebDataBackendImpl::GetAutofillProfiles(
               base::Unretained(this))));
 }
 
+WebDatabase::State AutofillWebDataBackendImpl::UpdateAutofillEntries(
+    const std::vector<autofill::AutofillEntry>& autofill_entries,
+    WebDatabase* db) {
+  DCHECK(db_thread_->BelongsToCurrentThread());
+  if (!AutofillTable::FromWebDatabase(db)
+           ->UpdateAutofillEntries(autofill_entries)) {
+    NOTREACHED();
+    return WebDatabase::COMMIT_NOT_NEEDED;
+  }
+
+  return WebDatabase::COMMIT_NEEDED;
+}
+
 WebDatabase::State AutofillWebDataBackendImpl::AddCreditCard(
     const CreditCard& credit_card, WebDatabase* db) {
   DCHECK(db_thread_->BelongsToCurrentThread());