Revert of Make OffscreenCanvas Transferable

third_party/WebKit/Source/bindings/core/v8/Transferables.cpp

Index: third_party/WebKit/Source/bindings/core/v8/Transferables.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/Transferables.cpp b/third_party/WebKit/Source/bindings/core/v8/Transferables.cpp
deleted file mode 100644
index b507ad29a494be1def83349cd68972de2a7cd8cf..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/bindings/core/v8/Transferables.cpp
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2016 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 "bindings/core/v8/Transferables.h"
-
-#include "core/dom/DOMArrayBufferBase.h"
-#include "core/dom/MessagePort.h"
-#include "core/frame/ImageBitmap.h"
-
-namespace blink {
-
-DEFINE_TRACE(Transferables)
-{
-    visitor->trace(arrayBuffers);
-    visitor->trace(imageBitmaps);
-    visitor->trace(messagePorts);
-}
-
-} // namespace blink