Update demo with features from support lib 23.2.0

demos/src/main/java/org/chromium/customtabsdemos/ShareBroadcastReceiver.java

-// Copyright 2015 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package org.chromium.customtabsdemos;
-
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-
-/**
- * A BroadcastReceiver that handles the Action Intent from the Custom Tab and fires a Share Intent.
- */
-public class ShareBroadcastReceiver extends BroadcastReceiver {
-
-    @Override
-    public void onReceive(Context context, Intent intent) {
-        String url = intent.getDataString();
-
-        if (url != null) {
-            Intent shareIntent = new Intent(Intent.ACTION_SEND);
-            shareIntent.setType("text/plain");
-            shareIntent.putExtra(Intent.EXTRA_TEXT, url);
-
-            Intent chooserIntent = Intent.createChooser(shareIntent, "Share url");
-            chooserIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-
-            context.startActivity(chooserIntent);
-        }
-    }
-}