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Auto merge of #7279 - pcwalton:tile-image-divide-by-zero, r=mbrubeck

Browse source 
layout: Avoid a division by zero in `tile_image()`.

Fixes a crash on Facebook Timeline.

r? @mbrubeck

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This commit is contained in:
bors-servo 2015-08-19 04:41:54 -06:00
commit 0234bbe444
4 changed files with 19 additions and 2 deletions
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9
tests/ref/background_size_zero_a.html Normal file
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@ -0,0 +1,9 @@
<!DOCTYPE html>
<style>
body {
background-image: url(400x400_green.png);
background-size: 0 0;
}
</style>
Don't crash!

3
tests/ref/background_size_zero_ref.html Normal file
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@ -0,0 +1,3 @@
<!DOCTYPE html>
Don't crash!

1
tests/ref/basic.list
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@ -38,6 +38,7 @@ flaky_cpu == append_style_a.html append_style_b.html
== background_repeat_y_a.html background_repeat_y_b.html
== background_size_a.html background_size_ref.html
== background_size_shorthand_a.html background_size_shorthand_ref.html
== background_size_zero_a.html background_size_zero_ref.html
== background_style_attr.html background_ref.html
== basic_width_px.html basic_width_em.html
== block_formatting_context_a.html block_formatting_context_ref.html