Remove unnecessary add/removeObserver lifetime notifier indirections.
With LifetimeNotifier<T,O>::{add,remove}Observer(O*) now being type
accurate & safe, we can simply expose these as public and avoid having
to define&declare forwarding versions. Unless the overriding is needed
(e.g., ContextLifecycleNotifier::addObserver().)
R=haraken
BUG=462949
Review URL: https://codereview.chromium.org/991763002
git-svn-id: svn://svn.chromium.org/blink/trunk@191537 bbb929c8-8fbe-4397-9dbb-9b2b20218538
9 files changed