Fixing iframe jank in the local omnibox popup.

chrome/browser/resources/local_omnibox_popup/local_omnibox_popup.css

Index: chrome/browser/resources/local_omnibox_popup/local_omnibox_popup.css
diff --git a/chrome/browser/resources/local_omnibox_popup/local_omnibox_popup.css b/chrome/browser/resources/local_omnibox_popup/local_omnibox_popup.css
index 75ec3b6b291624c524dd8008a4f8fc0a408375a1..a48b2315b5981824b2c7800d40138158520d8345 100644
--- a/chrome/browser/resources/local_omnibox_popup/local_omnibox_popup.css
+++ b/chrome/browser/resources/local_omnibox_popup/local_omnibox_popup.css
@@ -9,7 +9,7 @@ body {
   overflow: hidden;
 }
 
-#suggestionsBox {
+.suggestions-box {
   border-bottom: 1px #d9d9d9 solid;
   padding-bottom: 6px;
   padding-top: 6px;
@@ -22,6 +22,7 @@ body {
       url('images/2x/page_icon.png') 2x) no-repeat;
   padding-bottom: 2px;
   padding-top: 3px;
+  height: 22px;
   white-space: nowrap;
 }
 
@@ -31,22 +32,25 @@ body {
       url('images/2x/search_icon.png') 2x) no-repeat;
 }
 
-.suggestion:hover {
+.hovered {
   background-color: #eee;
 }
 
-.selected,
-.selected:hover {
+.selected {
   background-color: rgba(181, 213, 255, 0.5);
 }
 
 .contents {
+  position: absolute;
   -webkit-padding-start: 26px;
   -webkit-user-select: none;
   border: 0;
   height: 22px;
   overflow: hidden;
-  width: 100%;
+}
+
+.pending-container {
+  display: none;
 }
 
 /* Styling for native suggestions, hidden by the shadow DOM. */