Fail autocheckout if there is no forms in the page.

components/autofill/browser/autofill_manager.cc

Index: components/autofill/browser/autofill_manager.cc
diff --git a/components/autofill/browser/autofill_manager.cc b/components/autofill/browser/autofill_manager.cc
index c9acb0d03ca3ad1a24628b8314025e8869c8d9d4..e792565da0f919ab8a8262d32e03d621561f11d1 100644
--- a/components/autofill/browser/autofill_manager.cc
+++ b/components/autofill/browser/autofill_manager.cc
@@ -466,6 +466,14 @@ void AutofillManager::OnFormsSeen(const std::vector<FormData>& forms,
   }
 
   autocheckout_manager_.OnFormsSeen();
+  if (forms.empty()) {
+    // Call OnLoadedPageMetaData with no page metadata immediately if there is
+    // no form in the page. This give |autocheckout_manager| a chance to
+    // terminate Autocheckout and send Autocheckout status.
+    autocheckout_manager_.OnLoadedPageMetaData(
+        scoped_ptr<autofill::AutocheckoutPageMetaData>(NULL));
+  }
+
   bool enabled = IsAutofillEnabled();
   if (!has_logged_autofill_enabled_) {
     metric_logger_->LogIsAutofillEnabledAtPageLoad(enabled);