Import Dart bindings as of Blink r188698. This merely copies the files over and does not attach any…

sky/engine/bindings-dart/core/dart/custom/DartWorkerCustom.cpp

+// Copyright 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+
+#include "bindings/core/dart/DartWorker.h"
+
+#include "bindings/core/dart/DartUtilities.h"
+#include "bindings/core/dart/V8Converter.h"
+
+namespace blink {
+
+namespace DartWorkerInternal {
+
+static void handlePostMessageCallback(Dart_NativeArguments args, bool extendedTransfer)
+{
+    Dart_Handle exception = 0;
+    {
+        Worker* receiver = DartDOMWrapper::receiver<Worker>(args);
+
+        MessagePortArray portArray;
+        ArrayBufferArray bufferArray;
+        if (!Dart_IsNull(Dart_GetNativeArgument(args, 2))) {
+            DartUtilities::toMessagePortArray(Dart_GetNativeArgument(args, 2), portArray, bufferArray, exception);
+            if (exception)
+                goto fail;
+        }
+
+        RefPtr<SerializedScriptValue> message = DartUtilities::toSerializedScriptValue(
+            Dart_GetNativeArgument(args, 1),
+            &portArray,
+            extendedTransfer ? &bufferArray : 0,
+            exception);
+        if (exception)
+            goto fail;
+
+        DartExceptionState es;
+        receiver->postMessage(DartUtilities::scriptExecutionContext(), message.release(), &portArray, es);
+        if (es.hadException()) {
+            exception = es.toDart(args);
+            goto fail;
+        }
+
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+void postMessageCallback(Dart_NativeArguments args)
+{
+    handlePostMessageCallback(args, false);
+}
+
+void webkitPostMessageCallback(Dart_NativeArguments args)
+{
+    handlePostMessageCallback(args, true);
+}
+
+}
+
+}