diff -r 000000000000 -r 6474c204b198 dom/filesystem/FileSystemRequestParent.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/filesystem/FileSystemRequestParent.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,90 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "mozilla/dom/FileSystemRequestParent.h"
+
+#include "CreateDirectoryTask.h"
+#include "CreateFileTask.h"
+#include "GetFileOrDirectoryTask.h"
+#include "RemoveTask.h"
+
+#include "mozilla/AppProcessChecker.h"
+#include "mozilla/dom/FileSystemBase.h"
+
+namespace mozilla {
+namespace dom {
+
+FileSystemRequestParent::FileSystemRequestParent()
+{
+}
+
+FileSystemRequestParent::~FileSystemRequestParent()
+{
+}
+
+#define FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(name)                         \
+    case FileSystemParams::TFileSystem##name##Params: {                        \
+      const FileSystem##name##Params& p = aParams;                             \
+      mFileSystem = FileSystemBase::FromString(p.filesystem());                \
+      task = new name##Task(mFileSystem, p, this);                             \
+      break;                                                                   \
+    }
+
+bool
+FileSystemRequestParent::Dispatch(ContentParent* aParent,
+                                  const FileSystemParams& aParams)
+{
+  MOZ_ASSERT(aParent, "aParent should not be null.");
+  nsRefPtr<FileSystemTaskBase> task;
+  switch (aParams.type()) {
+
+    FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(CreateDirectory)
+    FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(CreateFile)
+    FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(GetFileOrDirectory)
+    FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(Remove)
+
+    default: {
+      NS_RUNTIMEABORT("not reached");
+      break;
+    }
+  }
+
+  if (NS_WARN_IF(!task || !mFileSystem)) {
+    // Should never reach here.
+    return false;
+  }
+
+  if (!mFileSystem->IsTesting()) {
+    // Check the content process permission.
+
+    nsCString access;
+    task->GetPermissionAccessType(access);
+
+    nsAutoCString permissionName;
+    permissionName = mFileSystem->GetPermission();
+    permissionName.AppendLiteral("-");
+    permissionName.Append(access);
+
+    if (!AssertAppProcessPermission(aParent, permissionName.get())) {
+      return false;
+    }
+  }
+
+  task->Start();
+  return true;
+}
+
+void
+FileSystemRequestParent::ActorDestroy(ActorDestroyReason why)
+{
+  if (!mFileSystem) {
+    return;
+  }
+  mFileSystem->Shutdown();
+  mFileSystem = nullptr;
+}
+
+} // namespace dom
+} // namespace mozilla