bindings: Adds DOMArrayBuffer, etc. as thin wrappers for ArrayBuffer, etc.

Source/core/dom/DOMArrayBuffer.cpp

Index: Source/core/dom/DOMArrayBuffer.cpp
diff --git a/Source/core/dom/DOMArrayBuffer.cpp b/Source/core/dom/DOMArrayBuffer.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..6d6ad6197a8cf97b0e34cccf99c6b9403364272c
--- /dev/null
+++ b/Source/core/dom/DOMArrayBuffer.cpp
@@ -0,0 +1,36 @@
+// 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 "config.h"
+#include "core/dom/DOMArrayBuffer.h"
+
+#include "bindings/core/v8/DOMDataStore.h"
+#include "bindings/core/v8/V8DOMWrapper.h"
+#include "core/dom/DOMArrayBufferDeallocationObserver.h"
+
+namespace blink {
+
+v8::Handle<v8::Object> DOMArrayBuffer::wrap(v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    // It's possible that no one except for the new wrapper owns this object at
+    // this moment, so we have to prevent GC to collect this object until the
+    // object gets associated with the wrapper.
+    RefPtrWillBeRawPtr<DOMArrayBuffer> protect(this);

[haraken, 2014/10/14 15:11:19]

DOMArrayBuffer is not yet moved to Oilpan's heap. So this should be RefPtr, not
RefPtrWillBeRawPtr.

[Yuki, 2014/10/15 09:35:23]

Done.
Also done for DOMDataView and DOMTypedArray.

+
+    ASSERT(!DOMDataStore::containsWrapperNonTemplate(this, isolate));
+
+    const WrapperTypeInfo* wrapperTypeInfo = this->wrapperTypeInfo();
+    v8::Handle<v8::Object> wrapper = v8::ArrayBuffer::New(isolate, data(), byteLength());
+
+    wrapperTypeInfo->installConditionallyEnabledProperties(wrapper, isolate);
+    return associateWithWrapper(wrapperTypeInfo, wrapper, isolate);
+}
+
+v8::Handle<v8::Object> DOMArrayBuffer::associateWithWrapper(const WrapperTypeInfo* wrapperTypeInfo, v8::Handle<v8::Object> wrapper, v8::Isolate* isolate)
+{
+    setDeallocationObserver(DOMArrayBufferDeallocationObserver::instance());
+    return V8DOMWrapper::associateObjectWithWrapperNonTemplate(this, wrapperTypeInfo, wrapper, isolate);
+}
+
+} // namespace blink