[XHR] remove now-unnecessary RaisesException attributes.

Source/core/xml/XMLHttpRequest.h

 /*
  *  Copyright (C) 2003, 2006, 2008 Apple Inc. All rights reserved.
  *  Copyright (C) 2005, 2006 Alexey Proskuryakov <ap@nypop.com>
  *  Copyright (C) 2011 Google Inc. All rights reserved.
  *  Copyright (C) 2012 Intel Corporation
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
@@ skipping 75 matching lines @@
 
     virtual void contextDestroyed();
     virtual void suspend();
     virtual void resume();
     virtual void stop();
 
     virtual const AtomicString& interfaceName() const OVERRIDE;
     virtual ExecutionContext* executionContext() const OVERRIDE;
 
     const KURL& url() const { return m_url; }
-    String statusText(ExceptionState&) const;
-    int status(ExceptionState&) const;
+    String statusText() const;
+    int status() const;
     State readyState() const;
     bool withCredentials() const { return m_includeCredentials; }
     void setWithCredentials(bool, ExceptionState&);
     void open(const AtomicString& method, const KURL&, ExceptionState&);
     void open(const AtomicString& method, const KURL&, bool async, ExceptionState&);
     void open(const AtomicString& method, const KURL&, bool async, const String& user, ExceptionState&);
     void open(const AtomicString& method, const KURL&, bool async, const String& user, const String& password, ExceptionState&);
     void send(ExceptionState&);
     void send(Document*, ExceptionState&);
     void send(const String&, ExceptionState&);
     void send(Blob*, ExceptionState&);
     void send(DOMFormData*, ExceptionState&);
     void send(ArrayBuffer*, ExceptionState&);
     void send(ArrayBufferView*, ExceptionState&);
     void abort();
     void setRequestHeader(const AtomicString& name, const AtomicString& value, ExceptionState&);
     void overrideMimeType(const AtomicString& override);
-    String getAllResponseHeaders(ExceptionState&) const;
-    const AtomicString& getResponseHeader(const AtomicString& name, ExceptionState&) const;
+    String getAllResponseHeaders() const;
+    const AtomicString& getResponseHeader(const AtomicString&) const;
     ScriptString responseText(ExceptionState&);
     ScriptString responseJSONSource();
     Document* responseXML(ExceptionState&);
     Blob* responseBlob();
     Stream* responseStream();
     unsigned long timeout() const { return m_timeoutMilliseconds; }
     void setTimeout(unsigned long timeout, ExceptionState&);
 
     void sendForInspectorXHRReplay(PassRefPtr<FormData>, ExceptionState&);
 
@@ skipping 134 matching lines @@
 
     // An enum corresponding to the allowed string values for the responseType attribute.
     ResponseTypeCode m_responseTypeCode;
     AsyncMethodRunner<XMLHttpRequest> m_dropProtectionRunner;
     RefPtr<SecurityOrigin> m_securityOrigin;
 };
 
 } // namespace WebCore
 
 #endif // XMLHttpRequest_h