DevTools: Search across files should work for file:folderName queries.

Source/devtools/front_end/sdk/Workspace.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 116 matching lines @@
      * @param {string} path
      * @param {string} query
      * @param {boolean} caseSensitive
      * @param {boolean} isRegex
      * @param {function(!Array.<!WebInspector.ContentProvider.SearchMatch>)} callback
      */
     searchInFileContent: function(path, query, caseSensitive, isRegex, callback) { },
 
     /**
      * @param {!WebInspector.ProjectSearchConfig} searchConfig
+     * @param {!Array.<string>} filesMathingFileQuery
      * @param {!WebInspector.Progress} progress
      * @param {function(!Array.<string>)} callback
      */
-    findFilesMatchingSearchRequest: function(searchConfig, progress, callback) { },
+    findFilesMatchingSearchRequest: function(searchConfig, filesMathingFileQuery, progress, callback) { },
 
     /**
      * @param {!WebInspector.Progress} progress
      */
     indexContent: function(progress) { }
 }
 
 /**
  * @interface
  */
@@ skipping 345 matching lines @@
      * @param {boolean} isRegex
      * @param {function(!Array.<!WebInspector.ContentProvider.SearchMatch>)} callback
      */
     searchInFileContent: function(uiSourceCode, query, caseSensitive, isRegex, callback)
     {
         this._projectDelegate.searchInFileContent(uiSourceCode.path(), query, caseSensitive, isRegex, callback);
     },
 
     /**
      * @param {!WebInspector.ProjectSearchConfig} searchConfig
+     * @param {!Array.<string>} filesMathingFileQuery
      * @param {!WebInspector.Progress} progress
      * @param {function(!Array.<string>)} callback
      */
-    findFilesMatchingSearchRequest: function(searchConfig, progress, callback)
+    findFilesMatchingSearchRequest: function(searchConfig, filesMathingFileQuery, progress, callback)
     {
-        this._projectDelegate.findFilesMatchingSearchRequest(searchConfig, progress, callback);
+        this._projectDelegate.findFilesMatchingSearchRequest(searchConfig, filesMathingFileQuery, progress, callback);
     },
 
     /**
      * @param {!WebInspector.Progress} progress
      */
     indexContent: function(progress)
     {
         this._projectDelegate.indexContent(progress);
     }
 }
@@ skipping 282 matching lines @@
         this.addEventListener(WebInspector.Workspace.Events.UISourceCodeAdded, listener, this);
     },
 
     __proto__: WebInspector.Object.prototype
 }
 
 /**
  * @type {!WebInspector.Workspace}
  */
 WebInspector.workspace;