Setting up external delegate calls to allow a future delegate to handle autofill

chrome/renderer/autofill/autofill_agent.h

Index: chrome/renderer/autofill/autofill_agent.h
diff --git a/chrome/renderer/autofill/autofill_agent.h b/chrome/renderer/autofill/autofill_agent.h
index 61c36e62b6dd394bc39775c431ad5282feb3ca04..913918d57431698fb6ffd2f9c1f32f06032bb874 100644
--- a/chrome/renderer/autofill/autofill_agent.h
+++ b/chrome/renderer/autofill/autofill_agent.h
@@ -101,9 +101,12 @@ class AutofillAgent : public content::RenderViewObserver,
   void OnFieldTypePredictionsAvailable(
       const std::vector<webkit_glue::FormDataPredictions>& forms);
 
- // For external Autofill selection.
+  // For external Autofill selection.
   void OnSelectAutofillSuggestionAtIndex(int listIndex);
 
+  // For setting if an external autofill delegate is in use.
+  void OnSetHasExternalDelegate(bool has_external_delegate);
+
   // Called in a posted task by textFieldDidChange() to work-around a WebKit bug
   // http://bugs.webkit.org/show_bug.cgi?id=16976
   void TextFieldDidChangeImpl(const WebKit::WebInputElement& element);
@@ -174,6 +177,10 @@ class AutofillAgent : public content::RenderViewObserver,
   // currently editing?  Used to keep track of state for metrics logging.
   bool has_shown_autofill_popup_for_current_edit_;
 
+  // Is an external delegate in the browser handling showing the autofill
+  // popup?  This determines whether we communicate with the delegate or WebKit.
+  bool has_external_delegate_;
+
   base::WeakPtrFactory<AutofillAgent> weak_ptr_factory_;
 
   friend class PasswordAutofillManagerTest;