bluetooth: Initial WebBluetooth & WebBluetoothError.

public/platform/Platform.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 43 matching lines @@
 #include "WebString.h"
 #include "WebURLError.h"
 #include "WebVector.h"
 
 class GrContext;
 
 namespace blink {
 
 class WebAudioBus;
 class WebBlobRegistry;
+class WebBluetooth;
 class WebContentDecryptionModule;
 class WebClipboard;
 class WebCompositorSupport;
 class WebConvertableToTraceFormat;
 class WebCookieJar;
 class WebCrypto;
 class WebDatabaseObserver;
 class WebDiscardableMemory;
 class WebPlatformEventListener;
 class WebFallbackThemeEngine;
@@ skipping 558 matching lines @@
 
     // Web Notifications --------------------------------------------------
 
     virtual WebNotificationPresenter* notificationPresenter() { return 0; }
 
 
     // Geofencing ---------------------------------------------------------
 
     virtual WebGeofencingProvider* geofencingProvider() { return 0; }
 
+    // Bluetooth ----------------------------------------------------------
+
+    // Returns pointer to client owned WebBluetooth implementation.
+    virtual WebBluetooth* bluetooth() { return 0; }

[yhirano, 2014/10/20 10:42:45]

Using nullptr is fine.

+
 protected:
     virtual ~Platform() { }
 };
 
 } // namespace blink
 
 #endif