If location services are turned off, have the BT chooser prompt the user to turn them on.

device/bluetooth/android/java/src/org/chromium/device/bluetooth/Wrappers.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.device.bluetooth;
 
 import android.Manifest;
 import android.annotation.TargetApi;
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
@@ skipping 148 matching lines @@
         private final Context mContext;
 
         public ContextWrapper(Context context) {
             mContext = context;
         }
 
         public boolean chromeHasLocationPermission() {
             return LocationUtils.getInstance().chromiumHasLocationPermission(mContext);
         }
 
+        public boolean isSystemLocationSettingEnabled() {
+            return LocationUtils.getInstance().isSystemLocationSettingEnabled(mContext);
+        }
+
         public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter) {
             return mContext.registerReceiver(receiver, filter);
         }
 
         public void unregisterReceiver(BroadcastReceiver receiver) {
             mContext.unregisterReceiver(receiver);
         }
     }
 
     /**
@@ skipping 400 matching lines @@
 
         public byte[] getValue() {
             return mDescriptor.getValue();
         }
 
         public boolean setValue(byte[] value) {
             return mDescriptor.setValue(value);
         }
     }
 }