device/bluetooth:Implement BluetoothMediaEndpointServiceProvider delegate and media-related overrides.

This CL implements delegate overrides for
BluetoothMediaEndpointServiceProvider and observer overrides for
BluetoothMediaClient and BluetoothMediaTransportClient. These
overrides will be called once a remote device connects to a local
A2DP audio sink, and the state of the audio sink should become idle.
The behaviors of FakeBluetoothMediaTransportClient,
FakeBluetoothMediaEndpointServiceProvider and
FakeMediaEndpointServiceProvider are also defined for
connection-related tests in this CL.

BUG=441581
TEST=device_unittests --gtest_filter=*AudioSink*

Review URL: https://codereview.chromium.org/910023002

Cr-Commit-Position: refs/heads/master@{#316709}

1 files changed, 6 insertions, 6 deletions

diff --git a/chromeos/dbus/bluetooth_media_client.h b/chromeos/dbus/bluetooth_media_client.h
index 2d9be6f..1bb5547 100644
--- a/chromeos/dbus/bluetooth_media_client.h
+++ b/chromeos/dbus/bluetooth_media_client.h
@@ -54,6 +54,12 @@ class CHROMEOS_EXPORT BluetoothMediaClient : public DBusClient {
     virtual void MediaRemoved(const dbus::ObjectPath& object_path) {}
   };
 
+  // Constants used to indicate exceptional error conditions.
+  static const char kNoResponseError[];
+
+  // The string representation for the 128-bit UUID for A2DP Sink.
+  static const char kBluetoothAudioSinkUUID[];
+
   ~BluetoothMediaClient() override;
 
   // The ErrorCallback is used by media API methods to indicate failure.
@@ -89,12 +95,6 @@ class CHROMEOS_EXPORT BluetoothMediaClient : public DBusClient {
 
   static BluetoothMediaClient* Create();
 
-  // Constants used to indicate exceptional error conditions.
-  static const char kNoResponseError[];
-
-  // The string representation for the 128-bit UUID for A2DP Sink.
-  static const char kBluetoothAudioSinkUUID[];
-
  protected:
   BluetoothMediaClient();