Reland of: Make OffscreenCanvas Transferable

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

 // 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.
 
 #include "bindings/core/v8/SerializedScriptValueFactory.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptValueSerializer.h"
 #include "bindings/core/v8/Transferables.h"
 #include "core/dom/DOMArrayBuffer.h"
@@ skipping 96 matching lines @@
 {
     serializedValue->setData(writer.takeWireString());
     ASSERT(serializedValue->data().impl()->hasOneRef());
     if (!transferables)
         return;
 
     serializedValue->transferImageBitmaps(isolate, transferables->imageBitmaps, exceptionState);
     if (exceptionState.hadException())
         return;
     serializedValue->transferArrayBuffers(isolate, transferables->arrayBuffers, exceptionState);
+    if (exceptionState.hadException())
+        return;
+    serializedValue->transferOffscreenCanvas(isolate, transferables->offscreenCanvases, exceptionState);
 }
 
 ScriptValueSerializer::Status SerializedScriptValueFactory::doSerialize(v8::Local<v8::Value> value, SerializedScriptValueWriter& writer, Transferables* transferables, WebBlobInfoArray* blobInfo, SerializedScriptValue* serializedValue, v8::TryCatch& tryCatch, String& errorMessage, v8::Isolate* isolate)
 {
     return doSerialize(value, writer, transferables, blobInfo, serializedValue->blobDataHandles(), tryCatch, errorMessage, isolate);
 }
 
 ScriptValueSerializer::Status SerializedScriptValueFactory::doSerialize(v8::Local<v8::Value> value, SerializedScriptValueWriter& writer, Transferables* transferables, WebBlobInfoArray* blobInfo, BlobDataHandleMap& blobDataHandles, v8::TryCatch& tryCatch, String& errorMessage, v8::Isolate* isolate)
 {
     ScriptValueSerializer serializer(writer, transferables, blobInfo, blobDataHandles, tryCatch, ScriptState::current(isolate));
@@ skipping 23 matching lines @@
     SerializedScriptValueReader reader(reinterpret_cast<const uint8_t*>(data.impl()->characters16()), 2 * data.length(), blobInfo, blobDataHandles, ScriptState::current(isolate));
     ScriptValueDeserializer deserializer(reader, messagePorts, arrayBufferContentsArray, imageBitmapContentsArray);
 
     // deserialize() can run arbitrary script (e.g., setters), which could result in |this| being destroyed.
     // Holding a RefPtr ensures we are alive (along with our internal data) throughout the operation.
     return deserializer.deserialize();
 }
 
 
 } // namespace blink