Change font settings to support Ubuntu Trusty.

Starting from Ubuntu Trusty, Droid font package has renamed few Arabic / Hindi
fonts.  We should move to Noto family.

For backward-compatibility, font names on Precise is also supported.

BUG=none
TEST=make # pass

Change-Id: Ic6d723daf05af11601a1e4f441edc2e35cf0e93a
Reviewed-on: https://chrome-internal-review.googlesource.com/185206
Tested-by: Hung-Te Lin <hungte@google.com>
Reviewed-by: Bowgo Tsai <bowgotsai@google.com>
Tested-by: Bowgo Tsai <bowgotsai@google.com>
Commit-Queue: Hung-Te Lin <hungte@google.com>