Don't trigger HW acceleration from Toasts on low-end devices.

chrome/android/java/src/org/chromium/chrome/browser/nfc/BeamCallback.java

 // Copyright 2014 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.nfc;
 
 import android.app.Activity;
 import android.nfc.NdefMessage;
 import android.nfc.NdefRecord;
 import android.nfc.NfcAdapter.CreateNdefMessageCallback;
 import android.nfc.NfcAdapter.OnNdefPushCompleteCallback;
 import android.nfc.NfcEvent;
 import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
 import android.text.TextUtils;
-import android.widget.Toast;
 
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.metrics.RecordUserAction;
 import org.chromium.chrome.R;
+import org.chromium.ui.widget.Toast;
 
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 
 /**
  * Beam callback that gets passed to Android to get triggered when devices are tapped to
@@ skipping 110 matching lines @@
     private static boolean isValidUrl(String url) {
         if (TextUtils.isEmpty(url)) return false;
         try {
             String urlProtocol = (new URL(url)).getProtocol();
             return urlProtocol.matches("http|https");
         } catch (MalformedURLException e) {
             return false;
         }
     }
 }