[Android O] Refactor channel definitions into new class

chrome/android/java/src/org/chromium/chrome/browser/notifications/CustomNotificationBuilder.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.content.res.Resources;
 import android.graphics.Bitmap;
@@ skipping 124 matching lines @@
             }
         }
         addActionButtons(bigView);
         configureSettingsButton(bigView);
 
         // Note: under the hood 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 */, ChannelsInitializer.CHANNEL_ID_SITES);
+                        false /* preferCompat */, ChannelDefinitions.CHANNEL_ID_SITES);
         builder.setTicker(mTickerText);
         builder.setContentIntent(mContentIntent);
         builder.setDeleteIntent(mDeleteIntent);
         builder.setDefaults(mDefaults);
         builder.setVibrate(mVibratePattern);
         builder.setWhen(mTimestamp);
         builder.setOnlyAlertOnce(!mRenotify);
         builder.setContent(compactView);
 
         // Some things are duplicated in the builder to ensure the notification shows correctly on
@@ skipping 161 matching lines @@
     }
 
     /**
      * Whether to use the Material look and feel or fall back to Holo.
      */
     @VisibleForTesting
     static boolean useMaterial() {
         return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
     }
 }