Don't display drop down arrows in rAc dialog unless there is a suggestion

chrome/browser/ui/autofill/autofill_dialog_controller.h

Index: chrome/browser/ui/autofill/autofill_dialog_controller.h
diff --git a/chrome/browser/ui/autofill/autofill_dialog_controller.h b/chrome/browser/ui/autofill/autofill_dialog_controller.h
index 4a2bb1756b770203ca1937bb11804e34f9381bd6..97f6811b8a4a7e225fc51e5cd63e887e35485b27 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_controller.h
+++ b/chrome/browser/ui/autofill/autofill_dialog_controller.h
@@ -103,8 +103,16 @@ class AutofillDialogController {
       AutofillFieldType type) = 0;
 
   // Returns the model for suggestions for fields that fall under |section|.
+  // This may return NULL, in which case no menu should be shown for that
+  // section.
   virtual ui::MenuModel* MenuModelForSection(DialogSection section) = 0;
 
+#if defined(OS_ANDROID)
+  // As the above, but will never return NULL. TODO(estade): android should
+  // stop relying on this and it should be removed.
+  virtual ui::MenuModel* MenuModelForSectionHack(DialogSection section) = 0;
+#endif
+
   // Returns the label text used to describe the section (i.e. Billing).
   virtual string16 LabelForSection(DialogSection section) const = 0;