Mass rename away from deprecated (MessagePumpIOSForIO|MessagePumpLibevent) types

 (MessagePumpIOSForIO|MessagePumpLibevent)::FileDescriptorWatcher
    => (MessagePumpIOSForIO|MessagePumpLibevent)::FdWatchController
 (MessagePumpIOSForIO|MessagePumpLibevent)::Watcher
    => (MessagePumpIOSForIO|MessagePumpLibevent)::FdWatcher

TBR=fdoray@chromium.org

Bug: 825327
Change-Id: Id7268678ace3e713173483abc077c8a27e680554
Reviewed-on: https://chromium-review.googlesource.com/1003058
Commit-Queue: François Doray <fdoray@chromium.org>
Reviewed-by: François Doray <fdoray@chromium.org>
Reviewed-by: Gabriel Charette <gab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#549517}
15 files changed