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 be794a0818866b45da2cbe267c104f98c8be4238..bcb80a770ecff1745e5622dc757ca42d7f802262 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_types.h
+++ b/chrome/browser/ui/autofill/autofill_dialog_types.h
@@ -32,9 +32,10 @@ class AutofillField;
 // dialog.
 struct DetailInput {
   enum Length {
-    SHORT,  // Short inputs share a line with other short inputs. [ CVC ][ Zip ]
-    LONG,   // Long inputs will be given their own full line.     [ City       ]
-    NONE,   // Input will not be shown.
+    SHORT,      // Shares a line with other short inputs. -> [ CVC ][ Zip ]
+    SHORT_EOL,  // Shares a line but causes inputs to wrap.  [ CVC ][ Zip ] <-

[Evan Stade, 2014/01/04 00:18:04]

the ascii art here isn't helping imo, especially because CVC and zip will never
be on the same line.

"Shares a line with other short inputs, akin to display: inline."
"Shares a line with other short inputs but terminates the line, akin to display:
inline with a newline."
"Will be given its own full line, like display: block."

[Dan Beam, 2014/01/04 00:50:47]

Done.

+    LONG,       // Will be given its own full line.       -> [ City       ] <-
+    NONE,       // Input will not be shown.
   };
 
   // Used to determine which inputs share lines when laying out.
@@ -42,8 +43,8 @@ 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.