device/bluetooth: Implement Unregister() of BlueotoothAudioSinkChromeOS and disconnection-related c…

chromeos/dbus/fake_bluetooth_media_transport_client.h

Index: chromeos/dbus/fake_bluetooth_media_transport_client.h
diff --git a/chromeos/dbus/fake_bluetooth_media_transport_client.h b/chromeos/dbus/fake_bluetooth_media_transport_client.h
index f88908f6111db8919c39632a6bac9022d075118a..319b2ae3c4e0518d527936f0c323e82f87d71856 100644
--- a/chromeos/dbus/fake_bluetooth_media_transport_client.h
+++ b/chromeos/dbus/fake_bluetooth_media_transport_client.h
@@ -17,6 +17,8 @@
 
 namespace chromeos {
 
+class FakeBluetoothMediaEndpointServiceProvider;
+
 class CHROMEOS_EXPORT FakeBluetoothMediaTransportClient
     : public BluetoothMediaTransportClient {
  public:
@@ -62,23 +64,56 @@ class CHROMEOS_EXPORT FakeBluetoothMediaTransportClient
                const base::Closure& callback,
                const ErrorCallback& error_callback) override;
 
-  // Makes the transport valid/invalid for a given media endpoint path. The
-  // transport object is assigned to the given endpoint if valid is true, false
+  // Makes the transport valid/invalid for a given media endpoint. The transport
+  // object is assigned to the given endpoint if valid is true, false
   // otherwise.
-  void SetValid(const dbus::ObjectPath& endpoint_path, bool valid);
+  void SetValid(FakeBluetoothMediaEndpointServiceProvider* endpoint,
+                bool valid);
+
+  // Set state/volume property to a certain value.
+  void SetState(const dbus::ObjectPath& endpoint_path,
+                const std::string& state);
+  void SetVolume(const dbus::ObjectPath& endpoint_path,
+                 const uint16_t& volume);
+
+  // Gets the transport path associated with the given endpoint path.
+  dbus::ObjectPath GetTransportPath(const dbus::ObjectPath& endpoint_path);
+
+  // Gets the endpoint path associated with the given transport_path.
+  dbus::ObjectPath GetEndpointPath(const dbus::ObjectPath& transport_path);
 
  private:
+  // This class is used for simulating the scenario where each media endpoint
+  // has a corresponding transport path and properties. Once an endpoint is
+  // assigned with a transport path, an object of Transport is created.
+  class Transport {
+   public:
+    Transport(const dbus::ObjectPath& transport_path,
+              Properties* transport_properties);
+    ~Transport();
+
+    // An unique transport path.
+    dbus::ObjectPath path;
+
+    // The property set bound with |path|.
+    scoped_ptr<Properties> properties;
+  };
+
   // Property callback passed while a Properties structure is created.
   void OnPropertyChanged(const std::string& property_name);
 
-  // The path of the media transport object.
-  dbus::ObjectPath object_path_;
+  // Map of endpoints with valid transport. Each pair is composed of an endpoint
+  // path and a Transport structure containing a transport path and its
+  // properties.
+  std::map<dbus::ObjectPath, Transport*> endpoint_to_transport_map_;
 
-  // Indicates whether endpoints are assigned with the transport object.
-  std::map<dbus::ObjectPath, bool> endpoints_;
+  // Map of valid transports. Each pair is composed of a transport path as the
+  // key and an endpoint path as the value. This map is used to get the
+  // corresponding endpoint path when GetProperties() is called.
+  std::map<dbus::ObjectPath, dbus::ObjectPath> transport_to_endpoint_map_;
 
-  // The fake property set of the media transport object.
-  scoped_ptr<Properties> properties_;
+  // The path of the media transport object.
+  dbus::ObjectPath object_path_;
 
   ObserverList<BluetoothMediaTransportClient::Observer> observers_;