DevTools: Add support for adding folders to workspace with drag and drop (renderer part)

Source/devtools/front_end/externs.js

 /*
  * Copyright (C) 2011 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 177 matching lines @@
 /**
  * @constructor
  */
 function DOMFileSystem() {}
 
 /**
  * @type {DirectoryEntry}
  */
 DOMFileSystem.prototype.root = null;
 
+// Drag and drop API
+/**
+ * @constructor
+ */
+function DataTransferItem() {}
+
+/**
+ * @return {Entry}
+ */
+DataTransferItem.prototype.webkitGetAsEntry = function() {}
+
 /** @type {Node} */
 Range.prototype.startContainer;
 
 // Inspector Backend
 var InspectorBackend = {}
 InspectorBackend.runAfterPendingDispatches = function(message) {}
 
 /** @interface */
 function InspectorFrontendHostAPI() {}
 /** @param {Function=} callback callback */
@@ skipping 18 matching lines @@
 InspectorFrontendHostAPI.prototype.searchInPath = function(requestId, fileSystemPath, query, callback) {}
 /** @param {Function=} callback callback */
 InspectorFrontendHostAPI.prototype.stopIndexing = function(requestId, callback) {}
 
 InspectorFrontendHostAPI.prototype.bringToFront = function() {}
 InspectorFrontendHostAPI.prototype.close = function(url) {}
 InspectorFrontendHostAPI.prototype.closeWindow = function() {}
 InspectorFrontendHostAPI.prototype.copyText = function(text) {}
 InspectorFrontendHostAPI.prototype.inspectedURLChanged = function(url) {}
 InspectorFrontendHostAPI.prototype.isolatedFileSystem = function(fileSystemId, registeredName) {}
+InspectorFrontendHostAPI.prototype.upgradeDraggedFileSystemPermissions = function(DOMFileSystem) {}
 InspectorFrontendHostAPI.prototype.loaded = function() {}
 InspectorFrontendHostAPI.prototype.localizedStringsURL = function() {}
 InspectorFrontendHostAPI.prototype.platform = function() {}
 InspectorFrontendHostAPI.prototype.port = function() {}
 InspectorFrontendHostAPI.prototype.recordActionTaken = function(actionCode) {}
 InspectorFrontendHostAPI.prototype.recordPanelShown = function(panelCode) {}
 InspectorFrontendHostAPI.prototype.recordSettingChanged = function(settingCode) {}
 InspectorFrontendHostAPI.prototype.requestSetDockSide = function(dockSide) {}
 InspectorFrontendHostAPI.prototype.sendMessageToBackend = function(message) {}
 InspectorFrontendHostAPI.prototype.sendMessageToEmbedder = function(message) {}
@@ skipping 306 matching lines @@
 
 WebInspector.settings.continuousPainting = /** type {WebInspector.Setting} */ { }
 WebInspector.settings.showDebugBorders = /** type {WebInspector.Setting} */ { }
 WebInspector.settings.showScrollBottleneckRects = /** type {WebInspector.Setting} */ { }
 WebInspector.settings.forceCompositingMode = /** type {WebInspector.Setting} */ { }
 WebInspector.settings.showFPSCounter = /** type {WebInspector.Setting} */ { }
 WebInspector.settings.showPaintRects = /** type {WebInspector.Setting} */ { }
 
 /** @type {boolean} */
 window.dispatchStandaloneTestRunnerMessages;