DevTools: introduce the Clear storage pane in the resources panel.

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

 /*
  * Copyright 2016 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.
  */
 
 :host {
     background-color: #f9f9f9;
 }
 
@@ skipping 10 matching lines @@
 
 .report-header .toolbar {
     margin-top: 5px;
     margin-left: -8px;
 }
 
 .report-title {
     font-size: 15px;
 }
 
-.report-url {
+.report-url, .report-subtitle {
     font-size: 12px;
     margin-top: 10px;
 }
 
 .report-section {
     display: flex;
-    padding: 12px 6px;
+    padding: 12px;
     border-bottom: 1px solid rgb(230, 230, 230);
     flex-direction: column;
 }
 
 .report-section-header {
     margin-left: 18px;
     display: flex;
     flex-direction: row;
     align-items: center;
 }
 
 .report-section-title {
     flex: auto;
     text-overflow: ellipsis;
     overflow: hidden;
     font-weight: bold;
     color: #555;
 }
 
 .report-field {
     margin-top: 8px;
     display: flex;
     line-height: 20px;
 }
 
 .report-row {
-    padding: 0 0 2px 18px;
+    margin: 10px 0 2px 18px;
 }
 
 .report-field-name {
     color: #888;
     flex: 0 0 128px;
     text-align: right;
     padding: 0 6px;
     white-space: pre;
 }
 
 .report-field-value {
     flex: auto;
     padding: 0 6px;
     text-overflow: ellipsis;
     overflow: hidden;
     white-space: pre;
 }
 
 .report-field-value-subtitle {
     color: #888;
     line-height: 14px;
 }