Update to newer Android Lint and suppress new Lint errors

net/android/java/src/org/chromium/net/NetworkChangeNotifier.java

 // Copyright 2012 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.net;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 
 import org.chromium.base.ObserverList;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.annotations.NativeClassQualifiedName;
 
 import java.util.ArrayList;
 
@@ skipping 17 matching lines @@
         public void onConnectionTypeChanged(int connectionType);
     }
 
     private final ArrayList<Long> mNativeChangeNotifiers;
     private final ObserverList<ConnectionTypeObserver> mConnectionTypeObservers;
     private NetworkChangeNotifierAutoDetect mAutoDetector;
     private int mCurrentConnectionType = ConnectionType.CONNECTION_UNKNOWN;
     private double mCurrentMaxBandwidth = Double.POSITIVE_INFINITY;
     private int mMaxBandwidthConnectionType = mCurrentConnectionType;
 
+    @SuppressLint("StaticFieldLeak")
     private static NetworkChangeNotifier sInstance;
 
     @VisibleForTesting
     protected NetworkChangeNotifier() {
         mNativeChangeNotifiers = new ArrayList<Long>();
         mConnectionTypeObservers = new ObserverList<ConnectionTypeObserver>();
     }
 
     // TODO(wnwen): Remove after downstream no longer depends on this.
     public static NetworkChangeNotifier init(Context context) {
@@ skipping 369 matching lines @@
     }
 
     /**
      * Checks if there currently is connectivity.
      */
     public static boolean isOnline() {
         int connectionType = getInstance().getCurrentConnectionType();
         return connectionType != ConnectionType.CONNECTION_NONE;
     }
 }