Ask libaddressinput for address components to use in requestAutocomplete().

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 1651770aa366857b73197b5ef12b968822b610e2..429213e60f468db02040792b110e49475b83949b 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_types.h
+++ b/chrome/browser/ui/autofill/autofill_dialog_types.h
@@ -35,8 +35,8 @@ struct DetailInput {
 
   ServerFieldType type;
 
-  // Placeholder text resource ID.
-  int placeholder_text_rid;
+  // Text shown when the input is at its default state (e.g. empty).
+  base::string16 placeholder_text;
 
   // A number between 0 and 1.0 that describes how much of the horizontal space
   // in the row should be allotted to this input. 0 is equivalent to 1.