DevTools: "Delete File" in navigator should actually delete a file

third_party/WebKit/Source/devtools/front_end/snippets/ScriptSnippetModel.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 103 matching lines @@
 
   /**
    * @param {!Common.Event} event
    */
   _workingCopyChanged(event) {
     var uiSourceCode = /** @type {!Workspace.UISourceCode} */ (event.data);
     this._scriptSnippetEdited(uiSourceCode);
   }
 
   /**
-   * @param {string} url
+   * @param {!Workspace.UISourceCode} uiSourceCode
    */
-  deleteScriptSnippet(url) {
-    var uiSourceCode = this._project.uiSourceCodeForURL(url);
-    if (!uiSourceCode)
-      return;
+  deleteScriptSnippet(uiSourceCode) {
     var snippetId = this._snippetIdForUISourceCode.get(uiSourceCode) || '';
     var snippet = this._snippetStorage.snippetForId(snippetId);
     if (!snippet)
       return;
     this._snippetStorage.deleteSnippet(snippet);
     this._removeBreakpoints(uiSourceCode);
     this._releaseSnippetScript(uiSourceCode);
     delete this._uiSourceCodeForSnippetId[snippet.id];
     this._snippetIdForUISourceCode.remove(uiSourceCode);
     this._project.removeFile(snippet.name);
@@ skipping 465 matching lines @@
    * @param {?string} name
    * @param {string} content
    * @param {function(?Workspace.UISourceCode)} callback
    */
   createFile(url, name, content, callback) {
     callback(this._model.createScriptSnippet(content));
   }
 
   /**
    * @override
-   * @param {string} url
+   * @param {!Workspace.UISourceCode} uiSourceCode
    */
-  deleteFile(url) {
-    this._model.deleteScriptSnippet(url);
+  deleteFile(uiSourceCode) {
+    this._model.deleteScriptSnippet(uiSourceCode);
   }
 };
 
 /**
  * @type {!Snippets.ScriptSnippetModel}
  */
 Snippets.scriptSnippetModel = new Snippets.ScriptSnippetModel(Workspace.workspace);