Implementing timeout support for XHR

Source/core/xml/XMLHttpRequest.h

Index: Source/core/xml/XMLHttpRequest.h
diff --git a/Source/core/xml/XMLHttpRequest.h b/Source/core/xml/XMLHttpRequest.h
index 5a1e5e3ae3568c709b922d3c27a2e30dc59020ed..69b0f07f16b5d2fbddbe6df1cdbcbf055f7c16bd 100644
--- a/Source/core/xml/XMLHttpRequest.h
+++ b/Source/core/xml/XMLHttpRequest.h
@@ -72,9 +72,7 @@ public:
     };
 
     virtual void contextDestroyed();
-#if ENABLE(XHR_TIMEOUT)
     virtual void didTimeout();
-#endif
     virtual bool canSuspend() const;
     virtual void suspend(ReasonForSuspension);
     virtual void resume();
@@ -110,10 +108,8 @@ public:
     Document* optionalResponseXML() const { return m_responseDocument.get(); }
     Blob* responseBlob(ExceptionCode&);
     Blob* optionalResponseBlob() const { return m_responseBlob.get(); }
-#if ENABLE(XHR_TIMEOUT)
     unsigned long timeout() const { return m_timeoutMilliseconds; }
     void setTimeout(unsigned long timeout, ExceptionCode&);
-#endif
 
     void sendForInspector(ExceptionCode&);
     void sendForInspectorXHRReplay(PassRefPtr<FormData>, ExceptionCode&);
@@ -146,9 +142,7 @@ public:
     DEFINE_ATTRIBUTE_EVENT_LISTENER(loadend);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(loadstart);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(progress);
-#if ENABLE(XHR_TIMEOUT)
     DEFINE_ATTRIBUTE_EVENT_LISTENER(timeout);
-#endif
 
     using RefCounted<XMLHttpRequest>::ref;
     using RefCounted<XMLHttpRequest>::deref;
@@ -204,9 +198,7 @@ private:
     String m_mimeTypeOverride;
     bool m_async;
     bool m_includeCredentials;
-#if ENABLE(XHR_TIMEOUT)
     unsigned long m_timeoutMilliseconds;
-#endif
     RefPtr<Blob> m_responseBlob;
 
     RefPtr<ThreadableLoader> m_loader;