The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1340ff2da37b5fcd669e08842cea9223b325a873

commit 1340ff2da37b5fcd669e08842cea9223b325a873
Author: sky <sky@chromium.org>
Date: Fri Jan 20 21:30:53 2017

mash: Makes mash and service:ui not establish outgoing connections

The ui service was connecting to chrome for the ime driver. As the ui
service is a singleton and chrome isn't, this triggered launching
another process of chrome, which we don't want. Turns out having ui
connect to chrome for the ime driver is unnecessary as chrome already
does this. So, removing the code.

Mash was connecting to the chrome for the keyboard service. This is
also problematic for similar reasons, so removing it too. Filed bug
to have chrome register keyboard with mash.

BUG= 664267 , 662157 , 664264 , 683192 , 683289 
TEST=none
R=moshayedi@chromium.org

Review-Url: https://codereview.chromium.org/2645683007
Cr-Commit-Position: refs/heads/master@{#445172}

[modify] https://crrev.com/1340ff2da37b5fcd669e08842cea9223b325a873/ash/mus/BUILD.gn
[modify] https://crrev.com/1340ff2da37b5fcd669e08842cea9223b325a873/ash/mus/keyboard_ui_mus.cc
[modify] https://crrev.com/1340ff2da37b5fcd669e08842cea9223b325a873/services/ui/ime/BUILD.gn
[modify] https://crrev.com/1340ff2da37b5fcd669e08842cea9223b325a873/services/ui/ime/ime_server_impl.cc
[modify] https://crrev.com/1340ff2da37b5fcd669e08842cea9223b325a873/services/ui/ime/ime_server_impl.h
[modify] https://crrev.com/1340ff2da37b5fcd669e08842cea9223b325a873/services/ui/manifest.json

This is a duplicate of  Issue 672888 , the last blocker for  Issue 670798 .