rAc: don't clobber user input when accepting autofill popup suggestion

chrome/browser/ui/autofill/autofill_dialog_types.h

Index: chrome/browser/ui/autofill/autofill_dialog_types.h
diff --git a/chrome/browser/ui/autofill/autofill_dialog_types.h b/chrome/browser/ui/autofill/autofill_dialog_types.h
index 10877f4048aefefa0d63e3dc1d2f0a6421ac4e18..f144d8c32c24fa26d2dbb4d47402fe85101757cf 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_types.h
+++ b/chrome/browser/ui/autofill/autofill_dialog_types.h
@@ -54,6 +54,13 @@ enum DialogSection {
   SECTION_SHIPPING,
 };
 
+// Used by UpdateSection() to indicate what to do with data that the user has
+// already input into textfields.
+enum UserInputAction {
+  CLEAR_USER_INPUT,
+  KEEP_USER_INPUT,
+};
+
 // A notification to show in the autofill dialog. Ranges from information to
 // seriously scary security messages, and will give you the color it should be
 // displayed (if you ask it).