[DevTools] Fix UI.EmptyWidget scrollbars

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

 /*
  * Copyright (c) 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.
  */
 
 .empty-view {
+    flex-shrink: 0;
     color: hsla(0, 0%, 65%, 1);
     padding: 30px;
     display: flex;
     align-items: center;
     justify-content: center;
+    flex-direction: column;
+}
+
+.empty-view-scroller {
     overflow: auto;
 }
 
+.empty-view h2 {
+    flex-shrink: 0;
+}
+
 .empty-view p {
+    flex-shrink: 0;
     white-space: initial;
     line-height: 18px;
     max-width: 300px;
 }