DevTools: simplify Service Workers panel UI, remove non-actionable data.

third_party/WebKit/Source/devtools/front_end/security/originView.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.
  */
 
 .title-section {
     padding-bottom: 10px;
     border-bottom: 1px solid rgb(230, 230, 230);
 }
 
 .security-origin-view {
     overflow-x: hidden;
     overflow-y: scroll;
     display: block;
     -webkit-user-select: text;
 }
 
 .security-origin-view .origin-view-section {
     border-bottom: 1px solid rgb(230, 230, 230);
-    padding: 12px 6px;
+    padding: 12px 6px 12px 18px;
 }
 
 .security-origin-view .origin-display {
     padding-left: 38px;
     display: flex;
     align-items: center;
 }
 
 .title-section > .link {
     padding: 6px 0 0 39px
 }
 
 .security-origin-view .origin-display .security-property {
     display: inline-block;
     vertical-align: middle;
     position: absolute;
     left: 18px;
 }
 
 .security-origin-view .origin-view-title {
     font-size: 15px;
     padding: 12px 24px;
 }
 
-.security-origin-view .origin-view-section-title {margin-bottom: 10px;padding-left: 18px;}
+.security-origin-view .origin-view-section-title {
+    margin-bottom: 10px;
+    font-weight: bold;
+    color: #555;
+}
 
 .security-origin-view .details-table-row {
     display: flex;
     white-space: nowrap;
     overflow: hidden;
     line-height: 22px;
 }
 
 .security-origin-view .details-table-row > div {
     align-items: flex-start;
@@ skipping 20 matching lines @@
     display: block;
 }
 
 .security-origin-view .truncated-san .truncated-entry {
     display: none;
 }
 
 .security-certificate-button {
     margin-top: 4px;
 }