Make OffscreenCanvas Transferable

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

Index: third_party/WebKit/Source/bindings/core/v8/TransferableExtractor.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/TransferableExtractor.cpp b/third_party/WebKit/Source/bindings/core/v8/TransferableExtractor.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..1612db4127d3854a205a633b6c6ee2cb04d68b5c
--- /dev/null
+++ b/third_party/WebKit/Source/bindings/core/v8/TransferableExtractor.cpp
@@ -0,0 +1,25 @@
+// 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/TransferableExtractor.h"
+
+namespace blink {
+
+static Vector<OwnPtr<TransferableExtractor>>& extractors()
+{
+    DEFINE_STATIC_LOCAL(Vector<OwnPtr<TransferableExtractor>>, extractors, ());
+    return extractors;
+}
+
+void TransferableExtractor::registerTransferableExtractor(PassOwnPtr<TransferableExtractor> extractor)
+{
+    extractors().append(extractor);
+}
+
+const Vector<OwnPtr<TransferableExtractor>>& TransferableExtractor::getExtractors()
+{
+    return extractors();
+}
+
+} // namespace blink