Update IDL to 1847

modules/filesystem/InspectorFrontendHostFileSystem.idl

Index: modules/filesystem/InspectorFrontendHostFileSystem.idl
diff --git a/modules/filesystem/InspectorFrontendHostFileSystem.idl b/modules/filesystem/InspectorFrontendHostFileSystem.idl
new file mode 100644
index 0000000000000000000000000000000000000000..d871faba2104f15d6c004171cb57cd5a65bbe237
--- /dev/null
+++ b/modules/filesystem/InspectorFrontendHostFileSystem.idl
@@ -0,0 +1,10 @@
+// Copyright 2014 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.
+
+[
+    RuntimeEnabled=FileSystem,
+] partial interface InspectorFrontendHost {
+    DOMFileSystem isolatedFileSystem(DOMString fileSystemId, DOMString registeredName);
+    void upgradeDraggedFileSystemPermissions(DOMFileSystem domFileSystem);
+};