DevTools: move FileSystemMapping under persistence/ module

third_party/WebKit/Source/devtools/front_end/settings/settingsScreen.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.
  */
 
 .help-window-main {
     color: rgb(48, 57, 66);
     background-color: white;
     padding: 11px 0 0 0;
 }
 
-.help-window-caption {
-    border-bottom: solid 1px rgb(153, 153, 153);
-    margin: 0 8px;
-    padding: 0 2px;
-    line-height: 28px;
-}
-
 .help-content {
     overflow-y: auto;
     overflow-x: hidden;
     margin: 8px 8px 8px 0;
     padding: 0 4px;
     flex: auto;
 }
 
 .help-footnote {
     border-top: 1px solid #EEEEEE;
     margin: 0;
     padding: 12px;
 }
 
 .help-container {
     width: 100%;
     -webkit-user-select: auto;
     -webkit-column-width: 288px;
 }
 
-.help-no-columns {
-    -webkit-column-width: initial !important;
-}
-
 .help-block {
     display: block;
     padding-bottom: 9px;
     width: 288px;
     -webkit-column-break-inside: avoid;
 }
 
 .settings-tab.help-container {
     -webkit-column-width: 308px;
 }
@@ skipping 169 matching lines @@
 }
 
 .settings-tab p {
     margin: 12px 0;
 }
 
 .settings-tab select {
     margin-left: 10px;
 }
 
-#workspace-tab-content .settings-tab.help-content.help-container {
-    -webkit-column-width: initial;
-    overflow: hidden;
-    padding-right: 10px;
-}
-
-
-#workspace-tab-content .button:hover {
-    opacity: 1.0 !important;
-}
-
-#workspace-tab-content .help-block {
-    width: auto;
-    margin-right: 20px;
-}
-
-p.folder-exclude-pattern {
-    display: flex;
-    align-items: center;
-}
-
-p.folder-exclude-pattern > input {
-    flex: auto;
-}
-
-.file-system-mapping-view {
-}
-
-.settings-tab .file-system-container {
-    border-top: 1px solid #aaa;
-    padding: 19px 0 10px;
-    margin: 20px 0;
-}
-
-.settings-tab .file-system-header {
-    display: flex;
-    flex-direction: row;
-    align-items: center;
-}
-
-.settings-tab .file-system-name {
-    font-weight: bold;
-    flex: none;
-    margin-right: 10px;
-    font-size: 15px;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    max-width: 70%;
-}
-
-.settings-tab .file-system-path {
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    flex: auto;
-}
-
-.settings-tab .file-system-remove {
-    flex: none;
-    margin-left: 10px;
-}
-
 .help-indent-labels label {
     padding-left: 10px;
 }
 
 .settings-experiment-hidden {
     display: none;
 }
 
 .settings-experiment-hidden label {
     background-color: #ddd;
 }
 
 .settings-developer-mode .settings-experiment-hidden {
     display: block;
 }
-
-.settings-info-message {
-    background-color: #eee;
-    padding: 10px;
-    margin: 20px 0;
-}