The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/87303d73f481bfa8acb3508180070ca70cecd4ca

commit 87303d73f481bfa8acb3508180070ca70cecd4ca
Author: jcivelli <jcivelli@chromium.org>
Date: Sat Oct 22 02:51:10 2016

Splitting the Mus demo code out of a service.

Splitting the Mus demo code so it can be executed from outside of a
service.
Also making the BitmapUploader use the async version of the GPU
service EstablishGpuChannel API to prevent a deadlock when embedded.

This is in preparation of running the Mus demo from Android content shell.

BUG= 657499 

Review-Url: https://chromiumcodereview.appspot.com/2440453002
Cr-Commit-Position: refs/heads/master@{#426959}

[modify] https://crrev.com/87303d73f481bfa8acb3508180070ca70cecd4ca/services/ui/demo/BUILD.gn
[modify] https://crrev.com/87303d73f481bfa8acb3508180070ca70cecd4ca/services/ui/demo/bitmap_uploader.cc
[modify] https://crrev.com/87303d73f481bfa8acb3508180070ca70cecd4ca/services/ui/demo/bitmap_uploader.h
[modify] https://crrev.com/87303d73f481bfa8acb3508180070ca70cecd4ca/services/ui/demo/main.cc
[modify] https://crrev.com/87303d73f481bfa8acb3508180070ca70cecd4ca/services/ui/demo/mus_demo.cc
[modify] https://crrev.com/87303d73f481bfa8acb3508180070ca70cecd4ca/services/ui/demo/mus_demo.h
[add] https://crrev.com/87303d73f481bfa8acb3508180070ca70cecd4ca/services/ui/demo/mus_demo_service.cc
[add] https://crrev.com/87303d73f481bfa8acb3508180070ca70cecd4ca/services/ui/demo/mus_demo_service.h
[modify] https://crrev.com/87303d73f481bfa8acb3508180070ca70cecd4ca/services/ui/public/cpp/BUILD.gn