Use new wrapper types for web_bluetooth.mojom

content/common/bluetooth/web_bluetooth_device_id.cc

 // 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.
 
 #include "content/common/bluetooth/web_bluetooth_device_id.h"
 
 #include "base/base64.h"
 #include "base/strings/string_util.h"
 #include "crypto/random.h"
 
@@ skipping 61 matching lines @@
 bool WebBluetoothDeviceId::operator==(
     const WebBluetoothDeviceId& device_id) const {
   return str() == device_id.str();
 }
 
 bool WebBluetoothDeviceId::operator!=(
     const WebBluetoothDeviceId& device_id) const {
   return !(*this == device_id);
 }
 
-std::ostream& operator<<(std::ostream& out,
-                         const WebBluetoothDeviceId& device_id) {
-  return out << device_id.str();
-}
-
 }  // namespace content