Make fixed size scrolling more like other lists.

chrome/browser/resources/settings/search_engines_page/search_engines_list.html

Index: chrome/browser/resources/settings/search_engines_page/search_engines_list.html
diff --git a/chrome/browser/resources/settings/search_engines_page/search_engines_list.html b/chrome/browser/resources/settings/search_engines_page/search_engines_list.html
index 04c9a28a3c5f14387a3e180bd82f8d6ffc4e2cf6..94461211dad467be7721a6f103976bd932e31608 100644
--- a/chrome/browser/resources/settings/search_engines_page/search_engines_list.html
+++ b/chrome/browser/resources/settings/search_engines_page/search_engines_list.html
@@ -33,6 +33,13 @@
         border-top: var(--settings-separator-line);
       }
 
+      .fixed-height-container {
+        /* Max items we show before scrolling is 6. Adding a 7th item to the
+         * list will add a scroll bar to the container. */
+        max-height: calc((var(--settings-row-min-height) +
+                          var(--settings-separator-height)) * 6);
+      }
+
       .icon-placeholder {
         width: calc(var(--iron-icon-width) + 2 * 10px);
       }
@@ -44,9 +51,10 @@
         <div class="url">$i18n{searchEnginesQueryURL}</div>
         <div class="icon-placeholder"></div>
       </div>
-      <div id="container" class="scroll-container">
+      <div id="container"
+          class$="scroll-container [[getHeightClass(scrollTarget)]]"
+          scrollable$="[[isScrollable(scrollTarget)]]">
         <iron-list items="[[engines]]" scroll-target="[[scrollTarget]]"
-            class$="[[getIronListClass_(scrollTarget)]]"
             scroll-offset="[[scrollOffset]]">
           <template>
             <settings-search-engine-entry engine="[[item]]"