Added new fileBrowserPrivate and fileHandler extension APIs

chrome/renderer/resources/event_bindings.js

 // Copyright (c) 2009 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.
 
 var chrome = chrome || {};
 (function () {
   native function GetChromeHidden();
   native function AttachEvent(eventName);
   native function DetachEvent(eventName);
+  native function GetExternalFileEntry(fileDefinition);
 
   var chromeHidden = GetChromeHidden();
 
   // Local implementation of JSON.parse & JSON.stringify that protect us
   // from being clobbered by an extension.
   chromeHidden.JSON = new (function() {
     var $Object = Object;
     var $Array = Array;
     var $jsonStringify = JSON.stringify;
     var $jsonParse = JSON.parse;
@@ skipping 61 matching lines @@
 
   chromeHidden.Event = {};
 
   // Dispatches a named event with the given JSON array, which is deserialized
   // before dispatch. The JSON array is the list of arguments that will be
   // sent with the event callback.
   chromeHidden.Event.dispatchJSON = function(name, args) {
     if (attachedNamedEvents[name]) {
       if (args) {
         args = chromeHidden.JSON.parse(args);
+        // TODO(zelidrag|aa): Remove this hack from here once we enable event
+        // JSON payload unpacking on C++ side.
+        if (name == "fileBrowserHandler.onExecute") {
+          if (args.length != 2)
+            return;
+          var fileList = args[1];
+          // The second parameter for this event's payload is file definition
+          // dictionary that we used to reconstruct File API's Entry instance
+          // here.
+          for (var i = 0; i < fileList.length; i++)
+            args[1][i] = GetExternalFileEntry(fileList[i]);
+        }
       }
       return attachedNamedEvents[name].dispatch.apply(
           attachedNamedEvents[name], args);
     }
   };
 
   // Dispatches a named event with the given arguments, supplied as an array.
   chromeHidden.Event.dispatch = function(name, args) {
     if (attachedNamedEvents[name]) {
       attachedNamedEvents[name].dispatch.apply(
@@ skipping 125 matching lines @@
       var event = allAttachedEvents[i];
       if (event)
         event.detach_();
     }
   };
 
   chromeHidden.dispatchError = function(msg) {
     console.error(msg);
   };
 })();