DevTools: move FileSystemMapping under persistence/ module

third_party/WebKit/Source/devtools/front_end/sources/SourcesPanel.js

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 717 matching lines @@
         uiSourceCode.name(), [Workspace.projectTypes.Network, Workspace.projectTypes.ContentScripts],
         mapFileSystemToNetwork);
 
     /**
      * @param {?Workspace.UISourceCode} networkUISourceCode
      */
     function mapFileSystemToNetwork(networkUISourceCode) {
       if (!networkUISourceCode)
         return;
       var fileSystemPath = Persistence.FileSystemWorkspaceBinding.fileSystemPath(uiSourceCode.project().id());
-      Workspace.fileSystemMapping.addMappingForResource(networkUISourceCode.url(), fileSystemPath, uiSourceCode.url());
+      Persistence.fileSystemMapping.addMappingForResource(
+          networkUISourceCode.url(), fileSystemPath, uiSourceCode.url());
     }
   }
 
   /**
    * @param {!Workspace.UISourceCode} networkUISourceCode
    */
   mapNetworkToFileSystem(networkUISourceCode) {
     Sources.SelectUISourceCodeForProjectTypesDialog.show(
         networkUISourceCode.name(), [Workspace.projectTypes.FileSystem], mapNetworkToFileSystem);
 
     /**
      * @param {?Workspace.UISourceCode} uiSourceCode
      */
     function mapNetworkToFileSystem(uiSourceCode) {
       if (!uiSourceCode)
         return;
       var fileSystemPath = Persistence.FileSystemWorkspaceBinding.fileSystemPath(uiSourceCode.project().id());
-      Workspace.fileSystemMapping.addMappingForResource(networkUISourceCode.url(), fileSystemPath, uiSourceCode.url());
+      Persistence.fileSystemMapping.addMappingForResource(
+          networkUISourceCode.url(), fileSystemPath, uiSourceCode.url());
     }
   }
 
   /**
    * @param {!Workspace.UISourceCode} uiSourceCode
    */
   _removeNetworkMapping(uiSourceCode) {
-    Workspace.fileSystemMapping.removeMappingForURL(uiSourceCode.url());
+    Persistence.fileSystemMapping.removeMappingForURL(uiSourceCode.url());
   }
 
   /**
    * @param {!UI.ContextMenu} contextMenu
    * @param {!Workspace.UISourceCode} uiSourceCode
    */
   _appendUISourceCodeMappingItems(contextMenu, uiSourceCode) {
     Sources.NavigatorView.appendAddFolderItem(contextMenu);
 
     if (Runtime.experiments.isEnabled('persistence2'))
@@ skipping 520 matching lines @@
    */
   willHide() {
     UI.inspectorView.setDrawerMinimized(false);
     setImmediate(() => Sources.SourcesPanel.updateResizerAndSidebarButtons(Sources.SourcesPanel.instance()));
   }
 
   _showViewInWrapper() {
     this._view.show(this.element);
   }
 };