Update to newer Android Lint and suppress new Lint errors

chrome/android/java/src/org/chromium/chrome/browser/media/remote/CastNotificationControl.java

 // Copyright 2016 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.media.remote;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Bitmap;
 import android.media.AudioManager;
 
 import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.media.remote.RemoteVideoInfo.PlayerState;
 import org.chromium.chrome.browser.media.ui.MediaNotificationInfo;
 import org.chromium.chrome.browser.media.ui.MediaNotificationListener;
 import org.chromium.chrome.browser.media.ui.MediaNotificationManager;
 import org.chromium.chrome.browser.metrics.MediaNotificationUma;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.content_public.common.MediaMetadata;
 
 import javax.annotation.Nullable;
 
 /**
  * Notification control controls the cast notification and lock screen, using
  * {@link MediaNotificationManager}
  */
 public class CastNotificationControl implements MediaRouteController.UiListener,
         MediaNotificationListener, AudioManager.OnAudioFocusChangeListener {
 
+    @SuppressLint("StaticFieldLeak")
     private static CastNotificationControl sInstance;
 
     private Bitmap mPosterBitmap;
     protected MediaRouteController mMediaRouteController;
     private MediaNotificationInfo.Builder mNotificationBuilder;
     private Context mContext;
     private PlayerState mState;
     private String mTitle = "";
     private AudioManager mAudioManager;
 
@@ skipping 199 matching lines @@
     }
 
     private void updateNotificationBuilderIfPosterIsGoodEnough() {
         Bitmap poster = mMediaRouteController.getPoster();
         if (MediaNotificationManager.isBitmapSuitableAsMediaImage(poster)) {
             mNotificationBuilder.setNotificationLargeIcon(poster);
             mNotificationBuilder.setMediaSessionImage(poster);
         }
     }
 }