MD-Settings: Convert users of cr:cancel to paper-icon-button-light.

ui/webui/resources/cr_elements/shared_style_css.html

Index: ui/webui/resources/cr_elements/shared_style_css.html
diff --git a/ui/webui/resources/cr_elements/shared_style_css.html b/ui/webui/resources/cr_elements/shared_style_css.html
index 0fa227059cbe7286b30c05a557b6f25d0a3433ec..d669216651611066b2c5b647af8dd97366dcbbf2 100644
--- a/ui/webui/resources/cr_elements/shared_style_css.html
+++ b/ui/webui/resources/cr_elements/shared_style_css.html
@@ -58,6 +58,15 @@
         background-image: url(chrome://resources/images/arrow_right.svg);
       }
 
+      button[is='paper-icon-button-light'].icon-cancel {
+        background-image: url(chrome://resources/images/icon_cancel.svg);
+      }
+
+      button[is='paper-icon-button-light'].icon-cancel-toolbar {
+        background-image:
+            url(chrome://resources/images/icon_cancel_toolbar.svg);
+      }
+
       button[is='paper-icon-button-light'].icon-external {
         background-image: url(chrome://resources/images/open_in_new.svg);
       }