Bluetooth: add Device events, and cleanup JS API

chrome/browser/extensions/event_names.h

 // Copyright (c) 2012 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.
 
 // Constants for the event names sent to extensions.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EVENT_NAMES_H_
 #define CHROME_BROWSER_EXTENSIONS_EVENT_NAMES_H_
 
 namespace extensions {
 
 namespace event_names {
 
 // FileBrowser.
 extern const char kOnDirectoryChanged[];
 extern const char kOnFileBrowserMountCompleted[];
 extern const char kOnFileTransfersUpdated[];
 extern const char kOnFileBrowserPreferencesChanged[];
 extern const char kOnFileBrowserDriveConnectionStatusChanged[];
 extern const char kOnFileBrowserCopyProgress[];
 
 // InputMethod.
 extern const char kOnInputMethodChanged[];
 
 // Context menus.
 extern const char kOnContextMenus[];
 
-// Bluetooth.
-extern const char kBluetoothOnDeviceDiscovered[];
-extern const char kBluetoothOnDeviceSearchFinished[];
-extern const char kBluetoothOnDeviceSearchResult[];
-
 // Notifications.
 extern const char kOnNotificationError[];
 
 }  // namespace event_names
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EVENT_NAMES_H_