Remove base::StringValue

chrome/browser/extensions/api/music_manager_private/music_manager_private_api.cc

 // Copyright 2013 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 "chrome/browser/extensions/api/music_manager_private/music_manager_private_api.h"
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/extensions/api/music_manager_private/device_id.h"
 
 using content::BrowserThread;
@@ skipping 27 matching lines @@
 }
 
 void MusicManagerPrivateGetDeviceIdFunction::DeviceIdCallback(
     const std::string& device_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   bool response;
   if (device_id.empty()) {
     SetError(kDeviceIdNotSupported);
     response = false;
   } else {
-    SetResult(base::MakeUnique<base::StringValue>(device_id));
+    SetResult(base::MakeUnique<base::Value>(device_id));
     response = true;
   }
 
   SendResponse(response);
 }
 
 } // namespace api
 } // namespace extensions