DevTools: simplify NetworkProject.addFileForURL method

third_party/WebKit/Source/devtools/front_end/common/StaticContentProvider.js

 // Copyright 2014 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
  * @implements {WebInspector.ContentProvider}
  * @param {!WebInspector.ResourceType} contentType
  * @param {string} content
- * @param {string=} contentURL
+ * @param {string} contentURL
  */
 WebInspector.StaticContentProvider = function(contentType, content, contentURL)
 {
     this._content = content;
     this._contentType = contentType;
-    this._contentURL = contentURL || "";
+    this._contentURL = contentURL;
 }
 
 /**
  * @param {string} content
  * @param {string} query
  * @param {boolean} caseSensitive
  * @param {boolean} isRegex
  * @param {function(!Array.<!WebInspector.ContentProvider.SearchMatch>)} callback
  */
 WebInspector.StaticContentProvider.searchInContent = function(content, query, caseSensitive, isRegex, callback)
@@ skipping 40 matching lines @@
      * @param {string} query
      * @param {boolean} caseSensitive
      * @param {boolean} isRegex
      * @param {function(!Array.<!WebInspector.ContentProvider.SearchMatch>)} callback
      */
     searchInContent: function(query, caseSensitive, isRegex, callback)
     {
         WebInspector.StaticContentProvider.searchInContent(this._content, query, caseSensitive, isRegex, callback);
     }
 }