The Tor Browser: gfx/cairo/quartz-glyph-extents.patch@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 --- a/gfx/cairo/cairo/src/cairo-quartz-font.c	Wed Dec 23 14:17:44 2009 -0500

     2 +++ b/gfx/cairo/cairo/src/cairo-quartz-font.c	Wed Dec 23 20:45:00 2009 +0000

     3 @@ -420,6 +420,16 @@ _cairo_quartz_init_glyph_metrics (cairo_

     4  	!CGFontGetGlyphBBoxesPtr (font_face->cgFont, &glyph, 1, &bbox))

     5  	goto FAIL;

     7 +    /* broken fonts like Al Bayan return incorrect bounds for some null characters,

     8 +       see https://bugzilla.mozilla.org/show_bug.cgi?id=534260 */

     9 +    if (unlikely (bbox.origin.x == -32767 &&

    10 +                  bbox.origin.y == -32767 &&

    11 +                  bbox.size.width == 65534 &&

    12 +                  bbox.size.height == 65534)) {

    13 +        bbox.origin.x = bbox.origin.y = 0;

    14 +        bbox.size.width = bbox.size.height = 0;

    15 +    }

    16 +

    17      status = _cairo_matrix_compute_basis_scale_factors (&font->base.scale,

    18  						  &xscale, &yscale, 1);

    19      if (status)

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