dbus: Mock MockObjectProxy::SetNameOwnerChangedCallback().

ObjectProxy's real method calls Bus::AssertOnOriginThread()
and causes in some log spam (but surprisingly doesn't
crash). Override the method in MockObjectProxy to prevent
this.

Also update chromeos::PowerManagerClientTest to expect this
call.

BUG=646912

Review-Url: https://codereview.chromium.org/2340683003
Cr-Original-Commit-Position: refs/heads/master@{#418864}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 0ef935c2ea78249e96fb76fbc3bb91a79ab32afb
1 file changed