binding: Lets Dictionary::getPropertyNames, etc. rethrow an exception.

third_party/WebKit/Source/bindings/core/v8/Dictionary.h

 /*
  * 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 60 matching lines @@
         NOTREACHED();
         return v8::Local<v8::Value>();
     }
   }
 
   bool get(const StringView& key, v8::Local<v8::Value>& value) const {
     return m_isolate && getInternal(v8String(m_isolate, key), value);
   }
   bool get(const StringView& key, Dictionary&) const;
 
-  bool getOwnPropertiesAsStringHashMap(HashMap<String, String>&) const;
-  bool getPropertyNames(Vector<String>&) const;
+  HashMap<String, String> getOwnPropertiesAsStringHashMap(
+      ExceptionState&) const;
+  Vector<String> getPropertyNames(ExceptionState&) const;
 
   bool hasProperty(const StringView& key, ExceptionState&) const;
 
   v8::Isolate* isolate() const { return m_isolate; }
   v8::Local<v8::Context> v8Context() const {
     ASSERT(m_isolate);
     return m_isolate->GetCurrentContext();
   }
 
   DictionaryIterator getIterator(ExecutionContext*) const;
@@ skipping 50 matching lines @@
   static bool get(const Dictionary&,
                   const StringView& key,
                   PointerType<T>& value);
   template <typename T>
   static bool get(const Dictionary&, const StringView& key, Nullable<T>& value);
 };
 
 }  // namespace blink
 
 #endif  // Dictionary_h