Implement privacy disclosure for an unbound webapk.

chrome/android/java/src/org/chromium/chrome/browser/notifications/StandardNotificationBuilder.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.notifications;
 
 import android.app.Notification;
 import android.content.Context;
 import android.os.Build;
 
 import org.chromium.chrome.browser.notifications.channels.ChannelDefinitions;
 
 /**
  * Builds a notification using the standard Notification.BigTextStyle layout.
  */
 public class StandardNotificationBuilder extends NotificationBuilderBase {
     private final Context mContext;
 
-    public StandardNotificationBuilder(Context context) {
-        super(context.getResources());
+    public StandardNotificationBuilder(
+            Context context, @ChannelDefinitions.ChannelId String channelId) {
+        super(context.getResources(), channelId);
         mContext = context;
     }
 
     @Override
     public Notification build() {
         // Note: this is not a NotificationCompat builder so be mindful of the
         // API level of methods you call on the builder.
         // TODO(crbug.com/697104) We should probably use a Compat builder.
         ChromeNotificationBuilder builder =
                 NotificationBuilderFactory.createChromeNotificationBuilder(
-                        false /* preferCompat */, ChannelDefinitions.CHANNEL_ID_SITES);
+                        false /* preferCompat */, mChannelId);
 
         builder.setContentTitle(mTitle);
         builder.setContentText(mBody);
         builder.setSubText(mOrigin);
         builder.setTicker(mTickerText);
         if (mImage != null) {
             Notification.BigPictureStyle style =
                     new Notification.BigPictureStyle().bigPicture(mImage);
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                 // Android N doesn't show content text when expanded, so duplicate body text as a
                 // summary for the big picture.
                 style.setSummaryText(mBody);
             }
             builder.setStyle(style);
         } else {
             // If there is no image, let the body text wrap only multiple lines when expanded.
             builder.setStyle(new Notification.BigTextStyle().bigText(mBody));
         }
         builder.setLargeIcon(getNormalizedLargeIcon());
         setSmallIconOnBuilder(builder, mSmallIconId, mSmallIconBitmap);
         builder.setContentIntent(mContentIntent);
         builder.setDeleteIntent(mDeleteIntent);
         for (Action action : mActions) {
             addActionToBuilder(builder, action);
         }
         if (mSettingsAction != null) {
             addActionToBuilder(builder, mSettingsAction);
         }
-        builder.setDefaults(mDefaults);
-        builder.setVibrate(mVibratePattern);
+        builder.setPriority(mPriority);
+        // Browser channel uses silent notifications to avoid disrupting the user.
+        if (!ChannelDefinitions.CHANNEL_ID_BROWSER.equals(mChannelId)) {
+            builder.setDefaults(mDefaults);
+            builder.setVibrate(mVibratePattern);
+        }
         builder.setWhen(mTimestamp);
         builder.setOnlyAlertOnce(!mRenotify);
         setGroupOnBuilder(builder, mOrigin);
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
             // Public versions only supported since L, and createPublicNotification requires L+.
             builder.setPublicVersion(createPublicNotification(mContext));
         }
         return builder.build();
     }
 }