Chromium Blob hacking

content/child/fileapi/webfilewriter_impl.cc

 // Copyright 2013 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/webfilewriter_impl.h"
 
 #include "base/bind.h"
 #include "base/platform_file.h"
 #include "base/synchronization/waitable_event.h"
 #include "content/child/child_thread.h"
@@ skipping 32 matching lines @@
   void Truncate(const GURL& path, int64 offset,
                 const StatusCallback& status_callback) {
     status_callback_ = status_callback;
     if (!GetFileSystemDispatcher())
       return;
     ChildThread::current()->file_system_dispatcher()->Truncate(
         path, offset, &request_id_,
         base::Bind(&WriterBridge::DidFinish, this));
   }
 
-  void Write(const GURL& path, const GURL& blob_url, int64 offset,
+  void WriteDeprecated(
+      const GURL& path, const GURL& blob_url, int64 offset,
+      const WriteCallback& write_callback,
+      const StatusCallback& error_callback) {
+    write_callback_ = write_callback;
+    status_callback_ = error_callback;
+    if (!GetFileSystemDispatcher())
+      return;
+    ChildThread::current()->file_system_dispatcher()->WriteDeprecated(
+        path, blob_url, offset, &request_id_,
+        base::Bind(&WriterBridge::DidWrite, this),
+        base::Bind(&WriterBridge::DidFinish, this));
+  }
+
+  void Write(const GURL& path, const std::string& id, int64 offset,
              const WriteCallback& write_callback,
              const StatusCallback& error_callback) {
     write_callback_ = write_callback;
     status_callback_ = error_callback;
     if (!GetFileSystemDispatcher())
       return;
     ChildThread::current()->file_system_dispatcher()->Write(
-        path, blob_url, offset, &request_id_,
+        path, id, offset, &request_id_,
         base::Bind(&WriterBridge::DidWrite, this),
         base::Bind(&WriterBridge::DidFinish, this));
   }
 
   void Cancel(const StatusCallback& status_callback) {
     status_callback_ = status_callback;
     if (!GetFileSystemDispatcher())
       return;
     ChildThread::current()->file_system_dispatcher()->Cancel(
         request_id_,
@@ skipping 60 matching lines @@
 
 WebFileWriterImpl::~WebFileWriterImpl() {
 }
 
 void WebFileWriterImpl::DoTruncate(const GURL& path, int64 offset) {
   RunOnMainThread(base::Bind(&WriterBridge::Truncate, bridge_,
       path, offset,
       base::Bind(&WebFileWriterImpl::DidFinish, AsWeakPtr())));
 }
 
+void WebFileWriterImpl::DoWriteDeprecated(
+    const GURL& path, const GURL& blob_url, int64 offset) {
+  RunOnMainThread(base::Bind(&WriterBridge::WriteDeprecated, bridge_,
+      path, blob_url, offset,
+      base::Bind(&WebFileWriterImpl::DidWrite, AsWeakPtr()),
+      base::Bind(&WebFileWriterImpl::DidFinish, AsWeakPtr())));
+}
+
 void WebFileWriterImpl::DoWrite(
-    const GURL& path, const GURL& blob_url, int64 offset) {
+    const GURL& path, const std::string& blob_id, int64 offset) {
   RunOnMainThread(base::Bind(&WriterBridge::Write, bridge_,
-      path, blob_url, offset,
+      path, blob_id, offset,
       base::Bind(&WebFileWriterImpl::DidWrite, AsWeakPtr()),
       base::Bind(&WebFileWriterImpl::DidFinish, AsWeakPtr())));
 }
 
 void WebFileWriterImpl::DoCancel() {
   RunOnMainThread(base::Bind(&WriterBridge::Cancel, bridge_,
       base::Bind(&WebFileWriterImpl::DidFinish, AsWeakPtr())));
 }
 
 void WebFileWriterImpl::RunOnMainThread(const base::Closure& closure) {
   if (main_thread_loop_->RunsTasksOnCurrentThread()) {
     DCHECK(!bridge_->waitable_event());
     closure.Run();
     return;
   }
   main_thread_loop_->PostTask(FROM_HERE, closure);
   if (bridge_->waitable_event())
     bridge_->WaitAndRun();
 }
 
 }  // namespace content