[SVG] Fix CSS transform handling when zoomed.

LayoutTests/svg/zoom/page/zoom-css-transforms.svg

Index: LayoutTests/svg/zoom/page/zoom-css-transforms.svg
diff --git a/LayoutTests/svg/zoom/page/zoom-css-transforms.svg b/LayoutTests/svg/zoom/page/zoom-css-transforms.svg
new file mode 100644
index 0000000000000000000000000000000000000000..1de569608688113fe7c52483c52dc2d2fa08c87d
--- /dev/null
+++ b/LayoutTests/svg/zoom/page/zoom-css-transforms.svg
@@ -0,0 +1,27 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" onload="runRepaintTest()">
+  <g style="-webkit-transform: translate(50px, 50px);">
+    <rect width="100" height="100" fill="green"/>
+  </g>
+
+  <g style="-webkit-transform: translate(250px, 35px) rotate(45deg);">
+    <rect width="100" height="100" fill="green"/>
+  </g>
+
+  <g style="-webkit-transform: translate(300px, 35px) skewX(35deg) skewY(35deg);">
+    <rect width="100" height="100" fill="green"/>
+  </g>
+
+  <g style="-webkit-transform: translate(50px, 250px) skewX(35deg);">
+    <rect width="100" height="100" fill="green"/>
+  </g>
+
+  <g style="-webkit-transform: translate(350px, 235px) skewY(35deg);">
+    <rect width="100" height="100" fill="green"/>
+  </g>
+
+  <defs>
+    <script>var zoomCount = 2;</script>
+    <script xlink:href="../../../fast/repaint/resources/repaint.js"/>
+    <script xlink:href="../resources/testPageZoom.js"/>
+  </defs>  
+</svg>