[Android] Fix chromium not working without angle

There is a switch in upstream "disable-glsl-translator", which should
allow shaders to work without angle. However it's broken by upstream
commit 576a049e2.

Maybe this patch can go upstream as well.
Remove Angle dependency under gyp flag disable_angle
Merge pull request #211 from wang16/mini_angle

Remove Angle dependency under gyp flag disable_angle