[DevTools] Always issue resize on viewport in FilteredListWidget.

third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css

 /*
  * Copyright 2015 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 * {
     /* This is required for correct sizing of flex items because we rely
      * on an old version of the flexbox spec.
      * Longer-term we should remove this, see crbug.com/473625 */
@@ skipping 377 matching lines @@
     background-color: white;
 }
 
 .glass-pane {
     position: absolute;
     top: 0;
     bottom: 0;
     left: 0;
     right: 0;
     overflow: hidden;
+    contain: strict;
 }
 
 .glass-pane-content {
     display: flex;
 }