message: Fix 3152: Upgrade libgtk from 2.0 to 3.0
diff: FROM node:8.11
  RUN apt-get update && \
  - apt-get install -y xorg xvfb libxss-dev libgtk2.0-0 gconf2 libnss3 libasound2
  + apt-get install -y xorg xvfb libxss-dev libgtk-3-0 gconf2 libnss3 libasound2
  ENV CXX="g++-4.9"
  ENV CC="gcc-4.9"
  