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/DartMessagePortCustom.cpp

Index: sky/engine/bindings-dart/core/dart/custom/DartMessagePortCustom.cpp
diff --git a/sky/engine/platform/text/TextRunIterator.h b/sky/engine/bindings-dart/core/dart/custom/DartMessagePortCustom.cpp
similarity index 50%
copy from sky/engine/platform/text/TextRunIterator.h
copy to sky/engine/bindings-dart/core/dart/custom/DartMessagePortCustom.cpp
index 280ff3f155a50d1407e7ed4225cb587714c49ef0..e7b6370eef11779ba434114c032abb6ab6fff7a2 100644
--- a/sky/engine/platform/text/TextRunIterator.h
+++ b/sky/engine/bindings-dart/core/dart/custom/DartMessagePortCustom.cpp
@@ -1,4 +1,5 @@
-// Copyright (C) 2013 Google Inc. All rights reserved.
+// 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
@@ -26,53 +27,62 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef SKY_ENGINE_PLATFORM_TEXT_TEXTRUNITERATOR_H_
-#define SKY_ENGINE_PLATFORM_TEXT_TEXTRUNITERATOR_H_
+#include "config.h"
+#include "bindings/core/dart/DartMessagePort.h"
 
-#include "sky/engine/platform/text/TextRun.h"
+#include "bindings/core/dart/DartDOMWrapper.h"
+#include "bindings/core/dart/DartUtilities.h"
+#include "core/dom/MessagePort.h"
 
 namespace blink {
 
-class TextRunIterator {
-public:
-    TextRunIterator()
-        : m_textRun(0)
-        , m_offset(0)
-    {
-    }
+namespace DartMessagePortInternal {
 
-    TextRunIterator(const TextRun* textRun, unsigned offset)
-        : m_textRun(textRun)
-        , m_offset(offset)
+void handlePostMessageCallback(Dart_NativeArguments args, bool extendedTransfer)
+{
+    Dart_Handle exception = 0;
     {
-    }
+        MessagePort* receiver = DartDOMWrapper::receiver<MessagePort>(args);
 
-    TextRunIterator(const TextRunIterator& other)
-        : m_textRun(other.m_textRun)
-        , m_offset(other.m_offset)
-    {
-    }
+        MessagePortArray portArray;
+        ArrayBufferArray bufferArray;
+        DartUtilities::toMessagePortArray(Dart_GetNativeArgument(args, 2), portArray, bufferArray, exception);
+        if (exception)
+            goto fail;
 
-    unsigned offset() const { return m_offset; }
-    void increment() { m_offset++; }
-    bool atEnd() const { return !m_textRun || m_offset >= m_textRun->length(); }
-    UChar current() const { return (*m_textRun)[m_offset]; }
-    WTF::Unicode::Direction direction() const { return atEnd() ? WTF::Unicode::OtherNeutral : WTF::Unicode::direction(current()); }
-    bool atParagraphSeparator() const { return current() == '\n'; }
+        RefPtr<SerializedScriptValue> message = DartUtilities::toSerializedScriptValue(
+            Dart_GetNativeArgument(args, 1),
+            &portArray,
+            extendedTransfer ? &bufferArray : 0,
+            exception);
+        if (exception)
+            goto fail;
 
-    bool operator==(const TextRunIterator& other)
-    {
-        return m_offset == other.m_offset && m_textRun == other.m_textRun;
+        DartExceptionState es;
+        receiver->postMessage(DartUtilities::scriptExecutionContext(), message.release(), &portArray, es);
+        if (es.hadException()) {
+            exception = es.toDart(args);
+            goto fail;
+        }
+
+        return;
     }
 
-    bool operator!=(const TextRunIterator& other) { return !operator==(other); }
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
 
-private:
-    const TextRun* m_textRun;
-    int m_offset;
-};
+void postMessageCallback(Dart_NativeArguments args)
+{
+    handlePostMessageCallback(args, false);
+}
 
+void webkitPostMessageCallback(Dart_NativeArguments args)
+{
+    handlePostMessageCallback(args, true);
+}
 
-} // namespace blink
+}
 
-#endif  // SKY_ENGINE_PLATFORM_TEXT_TEXTRUNITERATOR_H_
+}