Use ExceptionState to throw exceptions when converting arrays

Source/bindings/core/v8/DictionaryHelperForCore.cpp

 /*
  * Copyright (C) 2010 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 247 matching lines @@
     if (!dictionary.get(key, v8Value))
         return false;
 
     // We need to handle a DOMWindow specially, because a DOMWindow wrapper
     // exists on a prototype chain of v8Value.
     value = toDOMWindow(v8Value, dictionary.isolate());
     return true;
 }
 
 template <>
-bool DictionaryHelper::get(const Dictionary& dictionary, const String& key, MessagePortArray& value)
-{
-    v8::Local<v8::Value> v8Value;
-    if (!dictionary.get(key, v8Value))
-        return false;
-
-    ASSERT(dictionary.isolate());
-    ASSERT(dictionary.isolate() == v8::Isolate::GetCurrent());
-    if (blink::isUndefinedOrNull(v8Value))
-        return true;
-    bool success = false;
-    value = toRefPtrWillBeMemberNativeArray<MessagePort, V8MessagePort>(v8Value, key, dictionary.isolate(), &success);
-    return success;
-}
-
-template <>
 bool DictionaryHelper::get(const Dictionary& dictionary, const String& key, HashSet<AtomicString>& value)
 {
     v8::Local<v8::Value> v8Value;
     if (!dictionary.get(key, v8Value))
         return false;
 
     // FIXME: Support array-like objects
     if (!v8Value->IsArray())
         return false;
 
@@ skipping 355 matching lines @@
 
 template <>
 bool DictionaryHelper::convert(const Dictionary& dictionary, Dictionary::ConversionContext& context, const String& key, MessagePortArray& value)
 {
     Dictionary::ConversionContextScope scope(context);
 
     v8::Local<v8::Value> v8Value;
     if (!dictionary.get(key, v8Value))
         return true;
 
-    return DictionaryHelper::get(dictionary, key, value);
+    ASSERT(dictionary.isolate());
+    ASSERT(dictionary.isolate() == v8::Isolate::GetCurrent());
+
+    if (isUndefinedOrNull(v8Value))
+        return true;
+
+    value = toRefPtrWillBeMemberNativeArray<MessagePort, V8MessagePort>(v8Value, key, dictionary.isolate(), context.exceptionState());
+
+    if (context.exceptionState().throwIfNeeded())
+        return false;
+
+    return true;
 }
 
 } // namespace blink