Add final part of IPC plumbing for FileSystem API

chrome/common/render_messages_params.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_PARAMS_H_
 #define CHROME_COMMON_RENDER_MESSAGES_PARAMS_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 821 matching lines @@
   // The origin doing the initiating.
   GURL origin_url;
 
   // The requested FileSystem type.
   WebKit::WebFileSystem::Type type;
 
   // Indicates how much storage space (in bytes) the caller expects to need.
   int64 requested_size;
 };
 
+struct ViewMsg_FileSystem_DidReadDirectory_Params {
+  // The response should have this id.
+  int request_id;
+
+  // TODO(kinuko): replace this with file_util_proxy's entry structure
+  // once it's defined.
+  struct Entry {
+    // Name of the entry.
+    FilePath name;
+
+    // Indicates if the entry is directory or not.
+    bool is_directory;
+  };
+
+  // A vector of directory entries.
+  std::vector<Entry> entries;
+
+  // Indicates if there will be more entries.
+  bool has_more;
+};
+
 namespace IPC {
 
 class Message;
 
 // Traits for ViewMsg_Navigate_Params structure to pack/unpack.
 template <>
 struct ParamTraits<ViewMsg_Navigate_Params> {
   typedef ViewMsg_Navigate_Params param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, void** iter, param_type* p);
@@ skipping 233 matching lines @@
 };
 
 template <>
 struct ParamTraits<ViewHostMsg_OpenFileSystemRequest_Params> {
   typedef ViewHostMsg_OpenFileSystemRequest_Params param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, void** iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
 
+template <>
+struct ParamTraits<ViewMsg_FileSystem_DidReadDirectory_Params> {
+  typedef ViewMsg_FileSystem_DidReadDirectory_Params param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* p);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template <>
+struct ParamTraits<ViewMsg_FileSystem_DidReadDirectory_Params::Entry> {
+  typedef ViewMsg_FileSystem_DidReadDirectory_Params::Entry param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* p);
+  static void Log(const param_type& p, std::string* l);
+};
+
 }  // namespace IPC
 
 #endif  // CHROME_COMMON_RENDER_MESSAGES_PARAMS_H_