Add country combobox to change country and rebuild address inputs.

chrome/browser/ui/cocoa/autofill/autofill_pop_up_button.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/autofill/autofill_pop_up_button.h"
 
 #include <ApplicationServices/ApplicationServices.h>
 
 #include "base/mac/scoped_nsobject.h"
 #include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
@@ skipping 53 matching lines @@
 
 - (void)setDefaultValue:(NSString*)defaultValue {
   [[self cell] setDefaultValue:defaultValue];
 }
 
 - (BOOL)isDefault {
   return [[[self cell] fieldValue] isEqualToString:[[self cell] defaultValue]];
 }
 
 - (void)didSelectItem:(id)sender {
-  if (inputDelegate_)
+  if (inputDelegate_) {
+    [inputDelegate_ didChange:self];
     [inputDelegate_ didEndEditing:self];
+  }
 }
 
 @end
 
 
 @implementation AutofillPopUpCell
 
 @synthesize invalid = invalid_;
 @synthesize defaultValue = defaultValue_;
 
@@ skipping 22 matching lines @@
 
 - (void)setFieldValue:(NSString*)fieldValue {
   [self selectItemWithTitle:fieldValue];
   if (![self selectedItem])
     [self selectItemWithTitle:defaultValue_];
   if (![self selectedItem])
     [self selectItemAtIndex:0];
 }
 
 @end