Add more SVG-related mapLocalToAncestor/mapAncestorToLocal tests

third_party/WebKit/Source/core/layout/MapCoordinatesTest.cpp

Index: third_party/WebKit/Source/core/layout/MapCoordinatesTest.cpp
diff --git a/third_party/WebKit/Source/core/layout/MapCoordinatesTest.cpp b/third_party/WebKit/Source/core/layout/MapCoordinatesTest.cpp
index c4cf7c774f2e2aba8d6b153f3b646923b232497e..6008d5b5d880f26655424857156769ea46b6b41e 100644
--- a/third_party/WebKit/Source/core/layout/MapCoordinatesTest.cpp
+++ b/third_party/WebKit/Source/core/layout/MapCoordinatesTest.cpp
@@ -978,6 +978,42 @@ TEST_F(MapCoordinatesTest, SVGShapeWithViewBoxWithScale)
     EXPECT_EQ(FloatPoint(), mappedPoint);
 }
 
+TEST_F(MapCoordinatesTest, SVGShapeWithViewBoxWithNonZeroOffset)
+{
+    setBodyInnerHTML(
+        "<svg id='container' viewBox='100 100 200 200' width='400' height='200'>"
+        "    <g transform='translate(100 50)'>"
+        "        <rect id='target' transform='translate(100 100)' width='100' height='100'/>"
+        "    </g>"
+        "</svg>");
+
+    LayoutObject* target = getLayoutObjectByElementId("target");
+    LayoutBox* container = toLayoutBox(getLayoutObjectByElementId("container"));
+
+    FloatPoint mappedPoint = mapLocalToAncestor(target, container, FloatPoint());
+    EXPECT_EQ(FloatPoint(200, 50), mappedPoint);
+    mappedPoint = mapAncestorToLocal(target, container, mappedPoint);
+    EXPECT_EQ(FloatPoint(), mappedPoint);
+}
+
+TEST_F(MapCoordinatesTest, SVGShapeWithViewBoxWithNonZeroOffsetAndScale)
+{
+    setBodyInnerHTML(
+        "<svg id='container' viewBox='100 100 100 100' width='400' height='200'>"
+        "    <g transform='translate(50 50)'>"
+        "        <rect id='target' transform='translate(100 100)' width='100' height='100'/>"
+        "    </g>"
+        "</svg>");
+
+    LayoutObject* target = getLayoutObjectByElementId("target");
+    LayoutBox* container = toLayoutBox(getLayoutObjectByElementId("container"));
+
+    FloatPoint mappedPoint = mapLocalToAncestor(target, container, FloatPoint());
+    EXPECT_EQ(FloatPoint(200, 100), mappedPoint);
+    mappedPoint = mapAncestorToLocal(target, container, mappedPoint);
+    EXPECT_EQ(FloatPoint(), mappedPoint);
+}
+
 TEST_F(MapCoordinatesTest, SVGForeignObject)
 {
     setBodyInnerHTML(