bluetooth: Extend navigator.bluetooth IDL to include Bluetooth interface.

Source/modules/bluetooth/NavigatorBluetooth.cpp

+// Copyright 2014 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 "config.h"
+#include "modules/bluetooth/NavigatorBluetooth.h"
+
+#include "core/frame/Navigator.h"
+#include "modules/bluetooth/Bluetooth.h"
+
+namespace blink {
+
+NavigatorBluetooth& NavigatorBluetooth::from(Navigator& navigator)
+{
+    NavigatorBluetooth* supplement = static_cast<NavigatorBluetooth*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
+    if (!supplement) {
+        supplement = new NavigatorBluetooth();
+        provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
+    }
+    return *supplement;
+}
+
+Bluetooth* NavigatorBluetooth::bluetooth(Navigator& navigator)
+{
+    return NavigatorBluetooth::from(navigator).bluetooth();
+}
+
+Bluetooth* NavigatorBluetooth::bluetooth()
+{
+    if (!m_bluetooth)
+        m_bluetooth = Bluetooth::create();
+    return m_bluetooth.get();
+}
+
+void NavigatorBluetooth::trace(Visitor* visitor)
+{
+    visitor->trace(m_bluetooth);
+    WillBeHeapSupplement<Navigator>::trace(visitor);
+}
+
+NavigatorBluetooth::NavigatorBluetooth()
+{
+}
+
+DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(NavigatorBluetooth);
+
+const char* NavigatorBluetooth::supplementName()
+{
+    return "NavigatorBluetooth";
+}
+
+} // namespace blink