Use dropdown list for admin areas in pr form.

chrome/browser/autofill/android/personal_data_manager_android.h

Index: chrome/browser/autofill/android/personal_data_manager_android.h
diff --git a/chrome/browser/autofill/android/personal_data_manager_android.h b/chrome/browser/autofill/android/personal_data_manager_android.h
index 5f48ea02e66234f8397df65cb55bab583a4844c5..d9ff50cdd1a8e19357cc0cdd60313da877d49bcd 100644
--- a/chrome/browser/autofill/android/personal_data_manager_android.h
+++ b/chrome/browser/autofill/android/personal_data_manager_android.h
@@ -5,6 +5,11 @@
 #ifndef CHROME_BROWSER_AUTOFILL_ANDROID_PERSONAL_DATA_MANAGER_ANDROID_H_
 #define CHROME_BROWSER_AUTOFILL_ANDROID_PERSONAL_DATA_MANAGER_ANDROID_H_
 
+#include <map>
+#include <memory>
+#include <string>
+#include <vector>
+
 #include "base/android/jni_weak_ref.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
@@ -332,6 +337,31 @@ class PersonalDataManagerAndroid
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& unused_obj);
 
+  // Gets the sub-keys for the region with |jregion_code| code, if the
+  // |jregion_code| rules have finished loading. Otherwise, sets up a task to
+  // get the sub-keys, when the rules are loaded.
+  void StartGettingRegionSubKeys(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& unused_obj,
+      const base::android::JavaParamRef<jstring>& jregion_code,
+      const base::android::JavaParamRef<jobject>& jdelegate);
+
+  // Gets the sub-keys of the rule associated with |jregion_code|. Should only
+  // be called when the rules are loaded.
+  base::android::ScopedJavaLocalRef<jobjectArray> GetSubKeys(
+      JNIEnv* env,
+      const std::string& jregion_code);
+
+  // Callback of the sub-keys request.
+  // This is called when the sub-keys are loaded.
+  void OnGettingSubKeysRulesLoaded(const std::string& region_code,

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

As mentioned, this is probably not necessary.

+                                   bool success) override;
+
+  // Cancels the pending sub-key request task.
+  void CancelPendingGetSubKeys(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& unused_obj);
+
  private:
   ~PersonalDataManagerAndroid() override;
 
@@ -386,6 +416,10 @@ class PersonalDataManagerAndroid
   std::map<std::string, std::vector<std::unique_ptr<Delegate>>>
       pending_normalization_;
 
+  // Map associating a region code to pending sub-keys' request.
+  std::map<std::string, std::vector<std::unique_ptr<Delegate>>>
+      pending_subkeys_request_;
+
   DISALLOW_COPY_AND_ASSIGN(PersonalDataManagerAndroid);
 };