device/bluetooth: Add chromeos::BluetoothRemoteGattCharacteristicChromeOS.

chromeos/dbus/fake_bluetooth_gatt_service_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_SERVICE_CLIENT_H_
 #define CHROMEOS_DBUS_FAKE_BLUETOOTH_GATT_SERVICE_CLIENT_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "chromeos/chromeos_export.h"
 #include "chromeos/dbus/bluetooth_gatt_service_client.h"
 #include "dbus/object_path.h"
 #include "dbus/property.h"
 
 namespace chromeos {
 
 // FakeBluetoothGattServiceClient simulates the behavior of the Bluetooth Daemon
 // GATT service objects and is used in test cases in place of a mock and on the
@@ skipping 25 matching lines @@
   virtual std::vector<dbus::ObjectPath> GetServices() OVERRIDE;
   virtual Properties* GetProperties(const dbus::ObjectPath& object_path)
       OVERRIDE;
 
   // Makes a service visible for device with object path |device_path|. Note
   // that only one instance of a specific service is simulated at a time. Hence,
   // this method will fail, if the service is already visible.
   void ExposeHeartRateService(const dbus::ObjectPath& device_path);
   void HideHeartRateService();
 
+  // Returns whether or not the Heart Rate Service is visible.
+  bool IsHeartRateVisible() const;
+
+  // Returns the current object path of the visible Heart Rate service. If the
+  // service is not visible, returns an invalid empty path.
+  dbus::ObjectPath GetHeartRateServicePath() const;
+
   // Final object path components and the corresponding UUIDs of the GATT
   // services that we emulate. Service paths are hierarchical to Bluetooth
   // device paths, so if the path component is "service0000", and the device
   // path is "/org/foo/device0", the service path is
   // "/org/foo/device0/service0000".
   static const char kHeartRateServicePathComponent[];
   static const char kHeartRateServiceUUID[];
 
  private:
   // Property callback passed when we create Properties structures.
   void OnPropertyChanged(const dbus::ObjectPath& object_path,
                          const std::string& property_name);
 
   // Notifies observers.
   void NotifyServiceAdded(const dbus::ObjectPath& object_path);
   void NotifyServiceRemoved(const dbus::ObjectPath& object_path);
 
+  // Tells FakeBluetoothGattCharacteristicClient to expose GATT characteristics.
+  // This is scheduled from ExposeHeartRateService to simulate asynchronous
+  // retrieval of characteristics. If the Heart Rate Service is hidden at the
+  // time this method is called, then it does nothing.
+  void ExposeHeartRateCharacteristics();
+
   // Static properties we return. As long as a service is exposed, this will be
   // non-null. Otherwise it will be null.
   scoped_ptr<Properties> heart_rate_service_properties_;
   std::string heart_rate_service_path_;
 
   // List of observers interested in event notifications from us.
   ObserverList<Observer> observers_;
 
+  // Weak pointer factory for generating 'this' pointers that might live longer
+  // than we do.
+  // Note: This should remain the last member so it'll be destroyed and
+  // invalidate its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<FakeBluetoothGattServiceClient> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(FakeBluetoothGattServiceClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_FAKE_BLUETOOTH_GATT_SERVICE_CLIENT_H_