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

chromeos/dbus/fake_bluetooth_media_transport_client.cc

Index: chromeos/dbus/fake_bluetooth_media_transport_client.cc
diff --git a/chromeos/dbus/fake_bluetooth_media_transport_client.cc b/chromeos/dbus/fake_bluetooth_media_transport_client.cc
index 26fb832d431df651c0e8ae47cb248e6ffec021cb..90dc78ba13fec6909ad83429aea09fbedc3c2361 100644
--- a/chromeos/dbus/fake_bluetooth_media_transport_client.cc
+++ b/chromeos/dbus/fake_bluetooth_media_transport_client.cc
@@ -4,10 +4,15 @@
 
 #include "chromeos/dbus/fake_bluetooth_media_transport_client.h"
 
+#include <sstream>
+
 #include "base/bind.h"
+#include "base/stl_util.h"
 #include "chromeos/dbus/bluetooth_media_client.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
+#include "chromeos/dbus/fake_bluetooth_adapter_client.h"
 #include "chromeos/dbus/fake_bluetooth_media_client.h"
+#include "chromeos/dbus/fake_bluetooth_media_endpoint_service_provider.h"
 
 using dbus::ObjectPath;
 
@@ -17,15 +22,23 @@ namespace {
 const char kBluetoothMediaTransportInterface[] = "org.bluez.MediaTransport1";
 const char kNotImplemented[] = "org.bluez.NotImplemented";
 
+ObjectPath GenerateTransportPath() {
+  static unsigned int sequence_number = 0;
+  ++sequence_number;
+  std::stringstream path;
+  path << chromeos::FakeBluetoothAdapterClient::kAdapterPath
+       << chromeos::FakeBluetoothMediaTransportClient::kTransportDevicePath
+       << "/fd" << sequence_number;
+  return ObjectPath(path.str());
+}
+
 }  // namespace
 
 namespace chromeos {
 
 // static
-const char FakeBluetoothMediaTransportClient::kTransportPath[] =
-    "/fake/hci0/dev_00_00_00_00_00_00/fd0";
 const char FakeBluetoothMediaTransportClient::kTransportDevicePath[] =
-    "/fake/hci0/dev_00_00_00_00_00_00";
+    "/fake_audio_source";
 const uint8_t FakeBluetoothMediaTransportClient::kTransportCodec = 0x00;
 const std::vector<uint8_t>
     FakeBluetoothMediaTransportClient::kTransportConfiguration = {
@@ -64,8 +77,7 @@ void FakeBluetoothMediaTransportClient::Properties::Set(
   callback.Run(false);
 }
 
-FakeBluetoothMediaTransportClient::FakeBluetoothMediaTransportClient()
-    : object_path_(ObjectPath(kTransportPath)) {
+FakeBluetoothMediaTransportClient::FakeBluetoothMediaTransportClient() {
   // TODO(mcchou): Multiple endpoints are sharing one property set for now.
   // Add property sets accordingly to separate the
   // MediaTransportPropertiesChanged events for different endpoints.
@@ -130,20 +142,36 @@ void FakeBluetoothMediaTransportClient::Release(
 }
 
 void FakeBluetoothMediaTransportClient::SetValid(
-    const ObjectPath& endpoint_path,
+    FakeBluetoothMediaEndpointServiceProvider* endpoint,
     bool valid) {
+  FakeBluetoothMediaClient* media = static_cast<FakeBluetoothMediaClient*>(
+      DBusThreadManager::Get()->GetBluetoothMediaClient());
+  DCHECK(media);
+
+  ObjectPath endpoint_path(endpoint->object_path());
+  if (!media->IsRegistered(endpoint_path))
+    return;
+
   if (valid) {
-    endpoints_[endpoint_path] = valid;
+    ObjectPath transport_path = GenerateTransportPath();
+    VLOG(1) << "New transport, " << transport_path.value()
+            << " is created for endpoint " << endpoint_path.value();
+    endpoints_[endpoint_path] = transport_path;
     return;
   }
-  endpoints_.erase(endpoint_path);
-
-  // TODO(mcchou): Since there is only one transport path, all observers will
-  // be notified. Shades irrelevant observers.
 
   // Notifies observers about the state change of the transport.
   FOR_EACH_OBSERVER(BluetoothMediaTransportClient::Observer, observers_,
-                    MediaTransportRemoved(object_path_));
+                    MediaTransportRemoved(endpoints_[endpoint_path]));
+  endpoints_.erase(endpoint_path);
+  endpoint->ClearConfiguration(GetTransportPath(endpoint_path));
+}
+
+ObjectPath FakeBluetoothMediaTransportClient::GetTransportPath(
+    const ObjectPath& endpoint_path) {
+  if (ContainsKey(endpoints_, endpoint_path))
+    return endpoints_[endpoint_path];
+  return ObjectPath("");
 }
 
 void FakeBluetoothMediaTransportClient::OnPropertyChanged(