dbus: Rewrite ObjectProxy::CallMethodWithErrorCallback's comment
To make it clear which callback can get a nullptr when.
BUG=None
Review-Url: https://codereview.chromium.org/2299853002
Cr-Original-Commit-Position: refs/heads/master@{#415890}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: fd6b5515d45ca8559708fa1479dd762ad7c67225
diff --git a/object_proxy.h b/object_proxy.h
index 5bc4e20..5de3904 100644
--- a/object_proxy.h
+++ b/object_proxy.h
@@ -137,10 +137,10 @@
// from the method (i.e. calling a method that does not return a value),
// EmptyResponseCallback() can be passed to the |callback| parameter.
//
- // If the method call is successful, a pointer to Response object will
- // be passed to the callback. If unsuccessful, the error callback will be
- // called and a pointer to ErrorResponse object will be passed to the error
- // callback if available, otherwise NULL will be passed.
+ // If the method call is successful, |callback| will be invoked with a
+ // Response object. If unsuccessful, |error_callback| will be invoked with an
+ // ErrorResponse object (if the remote object returned an error) or nullptr
+ // (if a response was not received at all).
//
// Must be called in the origin thread.
virtual void CallMethodWithErrorCallback(MethodCall* method_call,
