MD WebUI: Fix misaligned spinner in narrow-mode cr-toolbar

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

Index: chrome/browser/resources/md_history/app.vulcanized.html
diff --git a/chrome/browser/resources/md_history/app.vulcanized.html b/chrome/browser/resources/md_history/app.vulcanized.html
index 425ccb7dbf9be2a2959e50125a8c28d1734f72ac..862f1c5f08ba0c403411f5094c9ae7f55834b0a1 100644
--- a/chrome/browser/resources/md_history/app.vulcanized.html
+++ b/chrome/browser/resources/md_history/app.vulcanized.html
@@ -2350,17 +2350,10 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
         width: 100%;
       }
 
-      /*
-       * Margin needs to be animated to prevent jumping around during
-       * opening/closing. -webkit-margin-start is not animatable, so we have to
-       * use regular margin-left/right instead.
-       */
-      :host-context([dir=ltr]):host([narrow][showing-search]) #icon {
-        margin-left: 18px;
-      }
-
-      :host-context([dir=rtl]):host([narrow][showing-search]) #icon {
-        margin-right: 18px;
+      :host-context([dir=ltr]):host([narrow][showing-search]) #icon,
+      :host-context([dir=ltr]):host([narrow][showing-search])
+          paper-spinner-lite {
+        -webkit-margin-start: 18px;
       }
     </style>
     <paper-spinner-lite active="[[isSpinnerShown_(spinnerActive, showingSearch)]]">