DevTools: [Workspace] fix removing stylesheet-related uiSourceCodes

Source/devtools/front_end/bindings/NetworkWorkspaceBinding.js

 /*
  * Copyright (C) 2012 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 141 matching lines @@
         return uiSourceCode;
     },
 
     /**
      * @param {string} url
      */
     removeFileForURL: function(url)
     {
         var splitURL = WebInspector.ParsedURL.splitURLIntoPathComponents(url);
         var projectName = splitURL[0];
+        var path = splitURL.slice(1).join("/");
         var projectDelegate = this._projectDelegates[projectName];
-        projectDelegate.removeFile(url);
+        projectDelegate.removeFile(path);
     },
 
     reset: function()
     {
         for (var projectId in this._projectDelegates)
             this._projectDelegates[projectId].reset();
         this._projectDelegates = {};
     },
 
     __proto__: WebInspector.Object.prototype
 }