Chrome OS: Attach bluetooth UI to device discovery API

chrome/browser/chromeos/bluetooth/bluetooth_manager.h

+// Copyright (c) 2011 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.
+
+#ifndef CHROME_BROWSER_CHROMEOS_BLUETOOTH_BLUETOOTH_MANAGER_H_
+#define CHROME_BROWSER_CHROMEOS_BLUETOOTH_BLUETOOTH_MANAGER_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+
+namespace chromeos {
+
+class BluetoothAdapter;
+
+// BluetoothManager provides the Chrome OS bluetooth API.
+// This API is simplified relative to what's available via D-Bus.
+// We'll export additional functionality as needed.
+class BluetoothManager {
+ public:
+  // Interface for observing changes from the bluetooth manager.
+  class Observer {
+   public:
+    // Notification that the default adapter has changed. If |adapter| is NULL,
+    // it means that there are no longer any adapters.
+    // Clients should not cache this pointer.
+    virtual void DefaultAdapterChanged(BluetoothAdapter* adapter) = 0;
+    virtual ~Observer() {}
+  };
+
+  // Adds and removes the observer.
+  virtual void AddObserver(Observer* observer) = 0;
+  virtual void RemoveObserver(Observer* observer) = 0;
+
+  // Returns the default local bluetooth adapter or NULL if there is none.
+  // Clients should not cache this pointer.
+  virtual BluetoothAdapter* DefaultAdapter() = 0;
+
+  static void Initialize();
+  static void Shutdown();
+  static BluetoothManager* GetInstance();
+
+ protected:
+  BluetoothManager();
+  virtual ~BluetoothManager();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BluetoothManager);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_BLUETOOTH_BLUETOOTH_MANAGER_H_