chromeos/dbus: Add verbose log to media-related clients and service provider.

chromeos/dbus/bluetooth_media_client.cc

Index: chromeos/dbus/bluetooth_media_client.cc
diff --git a/chromeos/dbus/bluetooth_media_client.cc b/chromeos/dbus/bluetooth_media_client.cc
index 23fc2ed265e025ed90f82617632123b43ec01415..0bdca3faeee3ebe99dcfff317c517aa00c5c7766 100644
--- a/chromeos/dbus/bluetooth_media_client.cc
+++ b/chromeos/dbus/bluetooth_media_client.cc
@@ -103,6 +103,8 @@ class BluetoothMediaClientImpl
                         const EndpointProperties& properties,
                         const base::Closure& callback,
                         const ErrorCallback& error_callback) override {
+    VLOG(1) << "RegisterEndpoint - endpoint: " << endpoint_path.value();
+
     dbus::MethodCall method_call(kBluetoothMediaInterface, kRegisterEndpoint);
 
     dbus::MessageWriter writer(&method_call);
@@ -155,6 +157,8 @@ class BluetoothMediaClientImpl
                           const dbus::ObjectPath& endpoint_path,
                           const base::Closure& callback,
                           const ErrorCallback& error_callback) override {
+    VLOG(1) << "UnregisterEndpoint - endpoint: " << endpoint_path.value();
+
     dbus::MethodCall method_call(kBluetoothMediaInterface, kUnregisterEndpoint);
 
     // Send the path to the endpoint.