Blurry font rendering on Linux

[cztomczak]

Issue occurs in v60+. To fix set the environment variable:
FREETYPE_PROPERTIES="truetype:interpreter-version=35".

Upstream CEF issue with more details:
https://bitbucket.org/chromiumembedded/cef/issues/2239/linux-font-rendering-hinting-blurry

[cztomczak]

I think we should add the use_system_freetype=true GN variable in automate.py when Debian system is detected.

[cztomczak]

This issue occurs only with some versions of fonts on Debian Stretch (Ubuntu 16.04..17.10). Debian Stretch builds Chromium using this GN option, however default Google Chrome or Chromium distributions don't. We are planning to use Spotify builds on Linux as well, so we shoulnd't make this default in our automate.py, maybe as an option.

[cztomczak]

Added --use-system-freetype flag to automate.py in commit cef0ca5.
Keeping this issue Open and labelled KB.