Persist the choice of AutofillDataModel when using the requestAutocomplete dialog.

chrome/browser/ui/autofill/autofill_dialog_models.cc

Index: chrome/browser/ui/autofill/autofill_dialog_models.cc
diff --git a/chrome/browser/ui/autofill/autofill_dialog_models.cc b/chrome/browser/ui/autofill/autofill_dialog_models.cc
index 18b05aff3a1acb70f20e5e48c8a5d99db01127f5..8965a559262504d191daa9800d3b6e773efcd214 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_models.cc
+++ b/chrome/browser/ui/autofill/autofill_dialog_models.cc
@@ -76,14 +76,7 @@ std::string SuggestionsMenuModel::GetItemKeyForCheckedItem() const {
 }
 
 void SuggestionsMenuModel::SetCheckedItem(const std::string& item_key) {
-  for (size_t i = 0; i < items_.size(); ++i) {
-    if (items_[i].first == item_key) {
-      checked_item_ = i;
-      return;
-    }
-  }
-
-  NOTREACHED();
+  SetCheckedItemNthWithKey(item_key, 1);
 }
 
 void SuggestionsMenuModel::SetCheckedIndex(size_t index) {
@@ -91,6 +84,17 @@ void SuggestionsMenuModel::SetCheckedIndex(size_t index) {
   checked_item_ = index;
 }
 
+void SuggestionsMenuModel::SetCheckedItemNthWithKey(const std::string& item_key,
+                                                    size_t n) {
+  for (size_t i = 0; i < items_.size(); ++i) {
+    if (items_[i].first == item_key) {
+      checked_item_ = i;
+      if (n-- <= 1)
+        return;
+    }
+  }
+}
+
 bool SuggestionsMenuModel::IsCommandIdChecked(
     int command_id) const {
   return checked_item_ == command_id;