Use ContextUtils in PhysicalWeb

chrome/android/java/src/org/chromium/chrome/browser/preferences/privacy/PhysicalWebPreferenceFragment.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.Manifest;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
 import android.preference.Preference;
 import android.preference.Preference.OnPreferenceChangeListener;
 import android.preference.Preference.OnPreferenceClickListener;
 import android.preference.PreferenceFragment;
 
 import org.chromium.base.Log;
 import org.chromium.chrome.R;
-import org.chromium.chrome.browser.ChromeApplication;
 import org.chromium.chrome.browser.physicalweb.ListUrlsActivity;
 import org.chromium.chrome.browser.physicalweb.PhysicalWeb;
 import org.chromium.chrome.browser.physicalweb.PhysicalWebUma;
 import org.chromium.chrome.browser.preferences.ButtonPreference;
 import org.chromium.chrome.browser.preferences.ChromeSwitchPreference;
 
 /**
  * Fragment to manage the Physical Web preference and to explain to the user what it does.
  */
 public class PhysicalWebPreferenceFragment extends PreferenceFragment {
@@ skipping 27 matching lines @@
 
     @Override
     public void onRequestPermissionsResult(int requestCode, String permissions[],
                                            int[] grantResults) {
         switch (requestCode) {
             case REQUEST_ID:
                 if (grantResults.length > 0
                         && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                     PhysicalWebUma.onPrefsLocationGranted(getActivity());
                     Log.d(TAG, "Location permission granted");
-                    PhysicalWeb.startPhysicalWeb(
-                            (ChromeApplication) getActivity().getApplicationContext());
+                    PhysicalWeb.startPhysicalWeb();
                 } else {
                     PhysicalWebUma.onPrefsLocationDenied(getActivity());
                     Log.d(TAG, "Location permission denied");
                 }
                 break;
             default:
         }
     }
 
     private void initPhysicalWebSwitch() {
@@ skipping 31 matching lines @@
             }
         });
     }
 
     private static Intent createListUrlsIntent(Context context) {
         Intent intent = new Intent(context, ListUrlsActivity.class);
         intent.putExtra(ListUrlsActivity.REFERER_KEY, ListUrlsActivity.PREFERENCE_REFERER);
         return intent;
     }
 }