Use kLow_SkFilterQuality in generateGlyphImage

This reduces jank when flinging a page of emoji on Android (I have separately shared out a spreadsheet). Arguably, the quality loss should be acceptable since we shouldn't be down-scaling that much (magnitude-wise not frequency-wise). Ideally, we would add a raster mode where we would draw at the correct size w/o generating the mip maps.

Change-Id: Id91d638db1b2457567e54c264ed3fa5d10316976
Reviewed-on: https://skia-review.googlesource.com/33763
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
1 file changed