Update the stringifier behavior for DOMMatrixReadOnly

third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-readonly.html

Index: third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-readonly.html
diff --git a/third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-readonly.html b/third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-readonly.html
index 3aa6eb358c3138d8f104cb834b9c9a7b01cd0237..ba1de9b5873772b9b56c49ffce943b6c862b65b6 100644
--- a/third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-readonly.html
+++ b/third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-readonly.html
@@ -60,19 +60,30 @@ test(() => {
 }, "DOMMatrixReadOnly(transformList) - transformList");
 
 test(() => {
-  var matrix2d = new DOMMatrixReadOnly([1, 2, 3, 3.1, 2, 1]);
+  var matrix2d = new DOMMatrixReadOnly([1, 2, 3, 3.1, 2, 1.123456789]);
   assert_true(matrix2d.is2D);
-  assert_equals(matrix2d.toString(), "matrix(1, 2, 3, 3.1, 2, 1)");
+  assert_equals(matrix2d.toString(), "matrix(1, 2, 3, 3.1, 2, 1.123456789)");
 }, "DOMMatrixReadOnly toString() - 2D matrix");
 
 test(() => {
-  var matrix3d = new DOMMatrixReadOnly([1, 2, 3, 4, 5, 6, 7, 8, 9, 10.1, 11, 12, 13, 14, 15, 16.6]);
+  var matrix2d = new DOMMatrixReadOnly([NaN, Infinity, NaN, Infinity, NaN, Infinity]);
+  assert_true(matrix2d.is2D);
+  assert_equals(matrix2d.toString(), "matrix(NaN, Infinity, NaN, Infinity, NaN, Infinity)");
+}, "DOMMatrixReadOnly toString() - 2D matrix with NaN and Infinity");
+
+test(() => {
+  var matrix3d = new DOMMatrixReadOnly([1, 2, 3, 4, 5, 6, 7, 8, 9, 10.1, 11, 12, 13, 14, 15, 16.123456789]);
   assert_false(matrix3d.is2D);
-  assert_equals(matrix3d.toString(), "matrix3d(1, 2, 3, 4, 5, 6, 7, 8, 9, 10.1, 11, 12, 13, 14, 15, 16.6)");
+  assert_equals(matrix3d.toString(), "matrix3d(1, 2, 3, 4, 5, 6, 7, 8, 9, 10.1, 11, 12, 13, 14, 15, 16.123456789)");
 }, "DOMMatrixReadOnly toString() - 3D matrix");
 
 test(() => {
-  var identity_matrix = DOMMatrixReadOnly.fromMatrix();
+  var matrix3d = new DOMMatrixReadOnly([NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity]);
+  assert_false(matrix3d.is2D);
+  assert_equals(matrix3d.toString(), "matrix3d(NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity, NaN, Infinity)");
+}, "DOMMatrixReadOnly toString() - 3D matrix with NaN and Infinity");
+
+test(() => {  var identity_matrix = DOMMatrixReadOnly.fromMatrix();
   assert_true(identity_matrix.is2D);
   assert_object_equals(identity_matrix.toJSON(),
     { a : 1, b : 0, c : 0, d : 1, e : 0, f : 0,