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-rw-r--r--layout/reftests/box-shadow/boxshadow-inner-basic-ref.svg41
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diff --git a/layout/reftests/box-shadow/boxshadow-inner-basic-ref.svg b/layout/reftests/box-shadow/boxshadow-inner-basic-ref.svg
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+<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
+<!-- This reference SVG must perform *exactly* the same path construction,
+ clipping, and filling operations that PaintBoxShadowInner does for
+ the HTML test file. If it doesn't match perfectly, antialiased
+ pixels at the curved edges will not agree.
+
+ PaintBoxShadowInner defines both its second (nonrectangular)
+ clipping path and its fill path as the even-odd-rule compositions
+ of two rectangles, one with nonzero corner radius. It is
+ impossible to express "the path consisting of the even-odd-rule
+ composition of two |rect| elements" in SVG. This is a minor
+ nuisance because we have to write everything out using |path|,
+ plus a major nuisance because Gecko uses the same ellipse-to-
+ Bezier conversion for rounded rectangles in SVG and HTML, but the
+ SVG 'A' operator uses a different one. Therefore we cannot use 'A'.
+ The 'C' parameters here were obtained by dumping out the cairo
+ operations used to draw the HTML, using cairo-trace. -->
+ <defs>
+ <clipPath id="outer">
+ <rect x="16" y="16" width="240" height="240"/>
+ </clipPath>
+ <clipPath id="inner">
+ <path clip-rule="evenodd"
+ d="M 248 16
+ H 24 C 19.58468 16 16 19.58468 16 24
+ V 248 C 16 252.41532 19.58468 256 24 256
+ H 248 C 252.41532 256 256 252.41532 256 248
+ V 24 C 256 19.58468 252.41532 16 248 16 Z
+ M 48 56 H 272 V 296 H 48 Z"/>
+ </clipPath>
+ </defs>
+ <g clip-path="url(#outer)">
+ <path fill="grey" fill-rule="evenodd" clip-path="url(#inner)"
+ d="M 16 16 H 256 V 256 H 16 Z
+ M 280 48
+ H 56 C 51.58468 48 48 51.58468 48 56
+ V 280 C 48 284.41532 51.58468 288 56 288
+ H 280 C 284.41532 288 288 284.41532 288 280
+ V 56 C 288 51.58468 284.41532 48 280 48 Z"/>
+ </g>
+</svg>