Update to newer Android Lint and suppress new Lint errors

chrome/android/java/src/org/chromium/chrome/browser/preferences/privacy/PrivacyPreferencesManager.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.preferences.privacy;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 
 import org.chromium.base.CommandLine;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.browser.ChromeSwitches;
 import org.chromium.chrome.browser.device.DeviceClassManager;
@@ skipping 15 matching lines @@
     private static final String PREF_METRICS_IN_SAMPLE = "in_metrics_sample";
     private static final String PREF_NETWORK_PREDICTIONS = "network_predictions";
     private static final String PREF_BANDWIDTH_OLD = "prefetch_bandwidth";
     private static final String PREF_BANDWIDTH_NO_CELLULAR_OLD = "prefetch_bandwidth_no_cellular";
     private static final String ALLOW_PRERENDER_OLD = "allow_prefetch";
     private static final String PREF_PHYSICAL_WEB = "physical_web";
     private static final int PHYSICAL_WEB_OFF = 0;
     private static final int PHYSICAL_WEB_ON = 1;
     private static final int PHYSICAL_WEB_ONBOARDING = 2;
 
+    @SuppressLint("StaticFieldLeak")
     private static PrivacyPreferencesManager sInstance;
 
     private final Context mContext;
     private final SharedPreferences mSharedPreferences;
 
     @VisibleForTesting
     PrivacyPreferencesManager(Context context) {
         mContext = context;
         mSharedPreferences = ContextUtils.getAppSharedPreferences();
 
@@ skipping 274 matching lines @@
     /**
      * Check whether Physical Web is configured to notify on nearby beacons.
      *
      * @return boolean {@code true} if the feature is enabled.
      */
     public boolean isPhysicalWebEnabled() {
         int state = mSharedPreferences.getInt(PREF_PHYSICAL_WEB, PHYSICAL_WEB_ONBOARDING);
         return (state == PHYSICAL_WEB_ON);
     }
 }