Update baselines for some svg/custom/ tests

LayoutTests/svg/custom/deep-dynamic-updates-expected.txt

Index: LayoutTests/svg/custom/deep-dynamic-updates-expected.txt
diff --git a/LayoutTests/svg/custom/deep-dynamic-updates-expected.txt b/LayoutTests/svg/custom/deep-dynamic-updates-expected.txt
index 786ce98dbf0ce8d4a19be9ab26a03fb70bd67574..2085297572cb1d6dc5461516378dfe0ba84ffb2a 100644
--- a/LayoutTests/svg/custom/deep-dynamic-updates-expected.txt
+++ b/LayoutTests/svg/custom/deep-dynamic-updates-expected.txt
@@ -1,16 +1,16 @@
-(GraphicsLayer
-  (bounds 800.00 600.00)
-  (children 1
-    (GraphicsLayer
-      (bounds 800.00 600.00)
-      (contentsOpaque 1)
-      (drawsContent 1)
-      (repaint rects
-        (rect 0.00 0.00 121.00 21.00)
-        (rect 0.00 0.00 401.00 401.00)
-        (rect 24.00 24.00 402.00 402.00)
-      )
-    )
-  )
-)
+{
+  "bounds": [800, 600],
+  "children": [
+    {
+      "bounds": [800, 600],
+      "contentsOpaque": true,
+      "drawsContent": true,
+      "repaintRects": [
+        [24, 24, 402, 402],
+        [0, 0, 401, 401],
+        [0, 0, 121, 21]
+      ]
+    }
+  ]
+}