MD WebUI: Simplify cr-toolbar CSS

chrome/browser/resources/md_history/lazy_load.vulcanized.html

Index: chrome/browser/resources/md_history/lazy_load.vulcanized.html
diff --git a/chrome/browser/resources/md_history/lazy_load.vulcanized.html b/chrome/browser/resources/md_history/lazy_load.vulcanized.html
index 6bdafb9fec96a46e328a468ee5ffd3a441fdd625..ceb843015226db52bf42901a540cdb88d0adf7a9 100644
--- a/chrome/browser/resources/md_history/lazy_load.vulcanized.html
+++ b/chrome/browser/resources/md_history/lazy_load.vulcanized.html
@@ -900,6 +900,22 @@ paper-spinner {
   cursor: var(--cr-actionable_-_cursor);
 }
 
+button[is='paper-icon-button-light'].subpage-arrow {
+  background-image: url("chrome://resources/images/arrow_right.svg");
+}
+
+button[is='paper-icon-button-light'].icon-external {
+  background-image: url("chrome://resources/images/open_in_new.svg");
+}
+
+.subpage-arrow, .icon-external {
+  display: none;
+}
+
+[actionable] :-webkit-any(.subpage-arrow, .icon-external), [actionable]:-webkit-any(.subpage-arrow, .icon-external) {
+  display: block;
+}
+
 [scrollable] {
   border-color: transparent;
         border-style: solid;