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..5c08c27b4a2f414ccab6a63fc692a57981ee726c 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();

[armansito, 2015/02/28 00:50:28]

nit: Add space after "endpoint: ", otherwise the object path will print
immediately after the colon. Also two colons make look a bit weird, I'd do:

"RegisterEndpoint - endpoint: " << ...

[Miao, 2015/02/28 02:19:32]

Done.

+
     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();

[armansito, 2015/02/28 00:50:28]

nit: same as above.

[Miao, 2015/02/28 02:19:32]

Done.

+
     dbus::MethodCall method_call(kBluetoothMediaInterface, kUnregisterEndpoint);
 
     // Send the path to the endpoint.