chromeos/dbus: Add fake D-Bus clients for GATT client-mode.

chromeos/dbus/fake_bluetooth_gatt_descriptor_client.h

+// 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.
+
+#ifndef CHROMEOS_DBUS_FAKE_BLUETOOTH_GATT_DESCRIPTOR_CLIENT_H_
+#define CHROMEOS_DBUS_FAKE_BLUETOOTH_GATT_DESCRIPTOR_CLIENT_H_
+
+#include "base/observer_list.h"
+#include "chromeos/chromeos_export.h"
+#include "chromeos/dbus/bluetooth_gatt_descriptor_client.h"
+
+namespace chromeos {
+
+// FakeBluetoothGattDescriptorClient simulates the behavior of the Bluetooth
+// Daemon GATT characteristic descriptor objects and is used in test cases in
+// place of a mock and on the Linux desktop.
+class CHROMEOS_EXPORT FakeBluetoothGattDescriptorClient
+    : public BluetoothGattDescriptorClient {
+ public:
+  struct Properties : public BluetoothGattDescriptorClient::Properties {
+    explicit Properties(const PropertyChangedCallback& callback);
+    virtual ~Properties();
+
+    // dbus::PropertySet override
+    virtual void Get(dbus::PropertyBase* property,
+                     dbus::PropertySet::GetCallback callback) OVERRIDE;
+    virtual void GetAll() OVERRIDE;
+    virtual void Set(dbus::PropertyBase* property,
+                     dbus::PropertySet::SetCallback callback) OVERRIDE;
+  };
+
+  FakeBluetoothGattDescriptorClient();
+  virtual ~FakeBluetoothGattDescriptorClient();
+
+  // DBusClient override.
+  virtual void Init(dbus::Bus* bus) OVERRIDE;
+
+  // BluetoothGattDescriptorClient overrides.
+  virtual void AddObserver(Observer* observer) OVERRIDE;
+  virtual void RemoveObserver(Observer* observer) OVERRIDE;
+  virtual std::vector<dbus::ObjectPath> GetDescriptors() OVERRIDE;
+  virtual Properties* GetProperties(const dbus::ObjectPath& object_path)
+      OVERRIDE;
+
+ private:
+  // TODO(armansito): Add simulated descriptors, once BlueZ's behavior is
+  // better defined.
+
+  // List of observers interested in event notifications from us.
+  ObserverList<Observer> observers_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeBluetoothGattDescriptorClient);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROMEOS_DBUS_FAKE_BLUETOOTH_GATT_DESCRIPTOR_CLIENT_H_