Adding Blink bindings for WebGL 2

Source/core/html/canvas/WebGLSync.cpp

Index: Source/core/html/canvas/WebGLSync.cpp
diff --git a/Source/core/html/canvas/WebGLSync.cpp b/Source/core/html/canvas/WebGLSync.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..6df45da40364292ef5ba00b3e37e5e1c67694fcf
--- /dev/null
+++ b/Source/core/html/canvas/WebGLSync.cpp
@@ -0,0 +1,29 @@
+// Copyright 2015 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/html/canvas/WebGLSync.h"
+
+#include "core/html/canvas/WebGL2RenderingContextBase.h"
+
+namespace blink {
+
+WebGLSync::~WebGLSync()
+{
+    deleteObject(0);
+}
+
+WebGLSync::WebGLSync(WebGL2RenderingContextBase* ctx, GLenum objectType)
+    : WebGLSharedObject(ctx)
+    , m_objectType(objectType)
+{
+}
+
+void WebGLSync::deleteObjectImpl(blink::WebGraphicsContext3D* context3d, Platform3DObject object)
+{
+    context3d->deleteSync(object);
+}
+
+} // namespace blink