StacktraceTop: _cairo_user_data_array_set_data (array=0x7f2d255c8a50, ~gfxFcFont (this=0x7f2d19e59ab0) gfxFontCache::DestroyFont ( nsExpirationTracker<gfxFont, 3u>::AgeOneGeneration ( nsExpirationTracker<gfxFont, 3u>::TimerCallback (
StacktraceTop: user_data_ array_set_ data (array= 0x7f2d255c8a50, 59ab0) :DestroyFont ( acker<gfxFont, 3u>::AgeOneGene ration ( acker<gfxFont, 3u>::TimerCallback (
_cairo_
~gfxFcFont (this=0x7f2d19e
gfxFontCache:
nsExpirationTr
nsExpirationTr