Don't read unecessary font files on Android.
With a new style fonts.xml (version >= 21) fallback fonts are specified
as font families without a name. The current code reads these, but then
also reads in the old fallback and vendor xml files. With this change,
when a new style xml file is encoutered, no further files will be read.
This both lowers memory use and speeds font lookup. Locally, this
change reduces the number of font families loaded on my 'L' device from
148 to 80. All of the families removed are duplicates.
Review URL: https://codereview.chromium.org/888923003
2 files changed