DevTools: split Sources tree into Network and Filesystem trees.

third_party/WebKit/Source/devtools/front_end/persistence/Persistence.js

 // 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.
 
 /**
  * @constructor
  * @extends {WebInspector.Object}
  * @param {!WebInspector.Workspace} workspace
  * @param {!WebInspector.BreakpointManager} breakpointManager
  * @param {!WebInspector.FileSystemMapping} fileSystemMapping
@@ skipping 247 matching lines @@
     /**
      * @param {!WebInspector.UISourceCode} uiSourceCode
      * @return {?WebInspector.PersistenceBinding}
      */
     binding: function(uiSourceCode)
     {
         return uiSourceCode[WebInspector.Persistence._binding] || null;
     },
 
     /**
+     * @param {!WebInspector.UISourceCode} uiSourceCode
+     * @return {?WebInspector.UISourceCode}
+     */
+    fileSystem: function(uiSourceCode)
+    {
+        var binding = this.binding(uiSourceCode);
+        return binding ? binding.fileSystem : null;
+    },
+
+    /**
      * @param {string} filePath
      */
     _addFilePathBindingPrefixes: function(filePath)
     {
         var relative = "";
         for (var token of filePath.split("/")) {
             relative += token + "/";
             var count = this._filePathPrefixesToBindingCount.get(relative) || 0;
             this._filePathPrefixesToBindingCount.set(relative, count + 1);
         }
@@ skipping 40 matching lines @@
  * @param {!WebInspector.UISourceCode} fileSystem
  */
 WebInspector.PersistenceBinding = function(network, fileSystem)
 {
     this.network = network;
     this.fileSystem = fileSystem;
 }
 
 /** @type {!WebInspector.Persistence} */
 WebInspector.persistence;