bors-servo 691bff86b6 Auto merge of #19651 - pyfisch:background-placement, r=emilio ... Unify background placement code Merges the implementations for background-image placement from gradients and images. Add missing parts and fix bugs. Now supported are the CSS properties: * background-attachment (except for local value, see #19650) * background-clip * background-origin * background-position-x/y * background-repeat * background-size It should be noted that backgrounds are not clipped to rounded border corners. (This was done before but worked only in simple cases) See: #19649 This solves the following issues: closes #19626 closes #16657 closes #19482 (examples from http://lea.verou.me/css3patterns/ are rendered perfectly but the round border is completely ignored now) closes #19577 - `./mach build -d` does not report any errors - `./mach test-tidy` does not report any errors I enabled a few tests with the first commit but I have written about a dozen manual tests I will try to turn into ref tests either before or after this patch lands. @bors-servo try The relationship between the different inputs is visualized in this flowchart:  <!-- Reviewable:start --> --- This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/19651) <!-- Reviewable:end -->		2018-01-02 08:47:24 -06:00
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mod.rs	Auto merge of #19651 - pyfisch:background-placement, r=emilio	2018-01-02 08:47:24 -06:00