Chromium Blob hacking

content/child/fileapi/file_system_dispatcher.cc

 // Copyright (c) 2012 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.
 
 #include "content/child/fileapi/file_system_dispatcher.h"
 
 #include "base/callback.h"
 #include "base/file_util.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/process/process.h"
@@ skipping 254 matching lines @@
     int* request_id_out,
     const StatusCallback& callback) {
   int request_id = dispatchers_.Add(CallbackDispatcher::Create(callback));
   ChildThread::current()->Send(
       new FileSystemHostMsg_Truncate(request_id, path, offset));
 
   if (request_id_out)
     *request_id_out = request_id;
 }
 
-void FileSystemDispatcher::Write(
+void FileSystemDispatcher::WriteDeprecated(
     const GURL& path,
     const GURL& blob_url,
     int64 offset,
     int* request_id_out,
     const WriteCallback& success_callback,
     const StatusCallback& error_callback) {
   int request_id = dispatchers_.Add(
       CallbackDispatcher::Create(success_callback, error_callback));
   ChildThread::current()->Send(
-      new FileSystemHostMsg_Write(request_id, path, blob_url, offset));
+      new FileSystemHostMsg_WriteDeprecated(request_id, path,
+                                            blob_url, offset));
 
   if (request_id_out)
     *request_id_out = request_id;
+}
+
+void FileSystemDispatcher::Write(
+    const GURL& path,
+    const std::string& blob_id,
+    int64 offset,
+    int* request_id_out,
+    const WriteCallback& success_callback,
+    const StatusCallback& error_callback) {
+  int request_id = dispatchers_.Add(
+      CallbackDispatcher::Create(success_callback, error_callback));
+  ChildThread::current()->Send(
+      new FileSystemHostMsg_Write(request_id, path, blob_id, offset));
+
+  if (request_id_out)
+    *request_id_out = request_id;
 }
 
 void FileSystemDispatcher::Cancel(
     int request_id_to_cancel,
     const StatusCallback& callback) {
   int request_id = dispatchers_.Add(CallbackDispatcher::Create(callback));
   ChildThread::current()->Send(new FileSystemHostMsg_CancelWrite(
       request_id, request_id_to_cancel));
 }
 
@@ skipping 104 matching lines @@
     quota::QuotaLimitType quota_policy) {
   CallbackDispatcher* dispatcher = dispatchers_.Lookup(request_id);
   DCHECK(dispatcher);
   dispatcher->DidOpenFile(IPC::PlatformFileForTransitToPlatformFile(file),
                           file_open_id,
                           quota_policy);
   dispatchers_.Remove(request_id);
 }
 
 }  // namespace content