[SVG] Fix CSS transform handling when zoomed.

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

Index: LayoutTests/svg/zoom/page/zoom-css-transforms-expected.svg
diff --git a/LayoutTests/svg/zoom/page/zoom-css-transforms-expected.svg b/LayoutTests/svg/zoom/page/zoom-css-transforms-expected.svg
new file mode 100644
index 0000000000000000000000000000000000000000..836b09f40666419a37fb61eeea48ed3446197365
--- /dev/null
+++ b/LayoutTests/svg/zoom/page/zoom-css-transforms-expected.svg
@@ -0,0 +1,27 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" onload="runRepaintTest()">
+  <g transform="translate(50, 50)">
+    <rect width="100" height="100" fill="green"/>
+  </g>
+
+  <g transform="translate(250, 35) rotate(45)">
+    <rect width="100" height="100" fill="green"/>
+  </g>
+
+  <g transform="translate(300, 35) skewX(35) skewY(35)">
+    <rect width="100" height="100" fill="green"/>
+  </g>
+
+  <g transform="translate(50, 250) skewX(35)">
+    <rect width="100" height="100" fill="green"/>
+  </g>
+
+  <g transform="translate(350, 235) skewY(35)">
+    <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>