MD - update checkbox and radio buttons

ui/gfx/vector_icons/checkbox_active.icon

Index: ui/gfx/vector_icons/checkbox_active.icon
diff --git a/ui/gfx/vector_icons/tab_close_hovered_pressed.icon b/ui/gfx/vector_icons/checkbox_active.icon
similarity index 56%
copy from ui/gfx/vector_icons/tab_close_hovered_pressed.icon
copy to ui/gfx/vector_icons/checkbox_active.icon
index 8b6696af92435ecd44934cabe24f058e7ebdc169..208bfd675effeabef288d59eb15230135d272e18 100644
--- a/ui/gfx/vector_icons/tab_close_hovered_pressed.icon
+++ b/ui/gfx/vector_icons/checkbox_active.icon
@@ -2,14 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// The close "X" for a tab when hovered/pressed.
 CANVAS_DIMENSIONS, 32,
-CIRCLE, 16, 16, 14,
+ROUND_RECT, 2, 2, 28, 28, 2,
 NEW_PATH,
 PATH_COLOR_ARGB, 0xFF, 0xFF, 0xFF, 0xFF,
-STROKE, 2.45f,
-MOVE_TO, 10.25f, 10.25f,
-R_LINE_TO, 11.5f, 11.5f,
-MOVE_TO, 10.25f, 21.75f,
-R_LINE_TO, 11.5f, -11.5f,
-END
+MOVE_TO, 14, 24,
+R_LINE_TO, -8, -8,
+R_LINE_TO, 2, -2,
+R_LINE_TO, 6, 6,
+LINE_TO, 26, 8,
+R_LINE_TO, 2, 2,
+CLOSE,
+END