Use dropdown list for admin areas in pr form.

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

 // Copyright 2015 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.
 
 package org.chromium.chrome.browser.preferences.autofill;
 
 import android.util.Pair;
 
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
@@ skipping 79 matching lines @@
         final Collator collator = Collator.getInstance(Locale.getDefault());
         collator.setStrength(Collator.PRIMARY);
         Collections.sort(countries, 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 countries;
+    }
 
-        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 (int i = 0; i < keys.length; ++i) {
+            // TODO (parastoog): show names, save keys. @crbug.com/691643
+            adminAreas.add(new DropdownKeyValue(keys[i], keys[i]));
+        }
+
+        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) {
+                // Sorted according to the admin area values, such as Quebec,
+                // rather than the admin area keys, such as QC.
+                return collator.compare(lhs.getValue(), rhs.getValue());
+            }
+        });
+        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<>();
         nativeGetRequiredFields(countryCode, requiredFields);
         return requiredFields;
     }
 
     /**
@@ skipping 84 matching lines @@
 
     private static native String nativeGetDefaultCountryCode();
     private static native void nativeGetSupportedCountries(List<String> countryCodes,
             List<String> countryNames);
     private static native void nativeGetRequiredFields(
             String countryCode, List<Integer> requiredFields);
     private static native String nativeGetAddressUiComponents(String countryCode,
             String languageCode, List<Integer> componentIds, List<String> componentNames,
             List<Integer> componentRequired, List<Integer> componentLengths);
 }