Use dropdown list for admin areas in pr form.

chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillProfileBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillProfileBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillProfileBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillProfileBridge.java
index 3b34d5c6a14ea46a8514a638ffde45740bae9aa3..d938f644f30502c2b4fd8e139b5ca34b16092c87 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillProfileBridge.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillProfileBridge.java
@@ -101,6 +101,27 @@ public class AutofillProfileBridge {
         return countries;
     }
 
+    /** @return The list of admin areas sorted by their localized display names. */
+    public static List<DropdownKeyValue> getAdminAreaDropdownList(String[] keys) {
+        List<DropdownKeyValue> adminAreas = new ArrayList<>();
+
+        for (String s : keys) {
+            adminAreas.add(new DropdownKeyValue(s, s)); // TODO (@parastoog): show names, save keys.

[sebsg, 2017/02/10 16:00:32]

The new format for TODOs is to create a bug in crbug and then write a comment as
follows:

 // TODO(crbug.com/XXXX): Show names, save keys.

That way, someone else can get a sense of what needs to be done by reading the
bug a maybe fix it :) 

[Parastoo, 2017/02/13 21:57:23]

Done.

+        }
+
+        final Collator collator = Collator.getInstance(Locale.getDefault());
+        collator.setStrength(Collator.PRIMARY);
+        Collections.sort(adminAreas, new Comparator<DropdownKeyValue>() {
+            @Override
+            public int compare(DropdownKeyValue lhs, DropdownKeyValue rhs) {
+                int result = collator.compare(lhs.getValue(), rhs.getValue());
+                if (result == 0) result = lhs.getKey().compareTo(rhs.getKey());
+                return result;
+            }
+        });
+        return adminAreas;
+    }
+
     /** @return The list of required fields. COUNTRY is always included. RECIPIENT often omitted. */
     public static List<Integer> getRequiredAddressFields(String countryCode) {
         List<Integer> requiredFields = new ArrayList<>();
@@ -144,7 +165,7 @@ public class AutofillProfileBridge {
      * Returns the UI components for the CLDR countryCode and languageCode provided. If no language
      * code is provided, the application's default locale is used instead. Also stores the
      * currentBestLanguageCode, retrievable via getCurrentBestLanguageCode, to be used when saving
-     * an autofill profile.
+     * an autofill profile
      *
      * @param countryCode The CLDR code used to retrieve address components.
      * @param languageCode The language code associated with the saved autofill profile that ui