Make fontmgr_bounds change with veryVerbose

When using the --veryVerbose command line flag, make the fontmgr_bounds
gm label each box with the name of the typeface and the glyph ids used
for each extrema.

Change-Id: Icf029366e51688cb4be1a3369f6d24bcba8386aa
Reviewed-on: https://skia-review.googlesource.com/137190
Reviewed-by: Ben Wagner <benjaminwagner@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
1 file changed