Add final part of IPC plumbing for FileSystem API

chrome/common/render_messages.h

 // Copyright (c) 2010 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.
 
 #ifndef CHROME_COMMON_RENDER_MESSAGES_H_
 #define CHROME_COMMON_RENDER_MESSAGES_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 90 matching lines @@
 struct ViewHostMsg_CreateWorker_Params;
 struct ViewHostMsg_ShowNotification_Params;
 struct ViewMsg_New_Params;
 struct ViewHostMsg_CreateWindow_Params;
 struct ViewHostMsg_RunFileChooser_Params;
 struct ViewMsg_ExtensionExtentInfo;
 struct ViewMsg_ExtensionExtentsUpdated_Params;
 struct ViewMsg_DeviceOrientationUpdated_Params;
 struct ViewHostMsg_DomMessage_Params;
 struct ViewHostMsg_OpenFileSystemRequest_Params;
+struct ViewMsg_FileSystem_DidReadDirectory_Params;
 
 // Values that may be OR'd together to form the 'flags' parameter of the
 // ViewMsg_EnablePreferredSizeChangedMode message.
 enum ViewHostMsg_EnablePreferredSizeChangedMode_Flags {
   kPreferredSizeNothing,
   kPreferredSizeWidth = 1 << 0,
   // Requesting the height currently requires a polling loop in render_view.cc.
   kPreferredSizeHeightThisIsSlow = 1 << 1,
 };
 
@@ skipping 613 matching lines @@
   static bool Read(const Message* m, void** iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
 
 }  // namespace IPC
 
 #define MESSAGES_INTERNAL_FILE "chrome/common/render_messages_internal.h"
 #include "ipc/ipc_message_macros.h"
 
 #endif  // CHROME_COMMON_RENDER_MESSAGES_H_