Support datalist for date/time input types on Android

content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePickerDialog.java

 // 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.
 
 package org.chromium.content.browser.input;
 
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
@@ skipping 12 matching lines @@
 
     protected final TwoFieldDatePicker mPicker;
     protected final  OnValueSetListener mCallBack;
 
     /**
      * The callback used to indicate the user is done filling in the date.
      */
     public interface OnValueSetListener {
 
         /**
-         * @param year The year that was set.
-         * @param positionInYear The week in year.
+         * @param value The value that was set.
          *  with {@link java.util.Calendar}.
          */
-        void onValueSet(int year, int positionInYear);
+        void onValueSet(double value);
      }
 
     /**
      * @param context The context the dialog is to run in.
      * @param callBack How the parent is notified that the date is set.
      * @param year The initial year of the dialog.
      * @param weekOfYear The initial week of the dialog.
      */
     public TwoFieldDatePickerDialog(Context context,
              OnValueSetListener callBack,
@@ skipping 38 matching lines @@
     }
 
     @Override
     public void onClick(DialogInterface dialog, int which) {
         tryNotifyDateSet();
     }
 
     /**
      * Notifies the listener, if such, that a date has been set.
      */
-    protected abstract void tryNotifyDateSet();
+    protected void tryNotifyDateSet() {
+        if (mCallBack != null) {
+            mPicker.clearFocus();
+            mCallBack.onValueSet(mPicker.getValue());
+        }
+    }
 
     @Override
     protected void onStop() {
         if (Build.VERSION.SDK_INT >= 16) {
             // The default behavior of dialogs changed in JellyBean and onwards.
             // Dismissing a dialog (by pressing back for example)
             // applies the chosen date. This code is added here so that the custom
             // pickers behave the same as the internal DatePickerDialog.
             tryNotifyDateSet();
         }
         super.onStop();
     }
 
     @Override
     public void onMonthOrWeekChanged(TwoFieldDatePicker view, int year, int positionInYear) {
         mPicker.init(year, positionInYear, null);
     }
 
     /**
      * Sets the current date.
      *
      * @param year The date week year.
      * @param weekOfYear The date week.
      */
     public void updateDate(int year, int weekOfYear) {
         mPicker.updateDate(year, weekOfYear);
     }
 }