Fix style errors in core/xml/.

Source/core/xml/XMLHttpRequestProgressEventThrottle.cpp

Index: Source/core/xml/XMLHttpRequestProgressEventThrottle.cpp
diff --git a/Source/core/xml/XMLHttpRequestProgressEventThrottle.cpp b/Source/core/xml/XMLHttpRequestProgressEventThrottle.cpp
index 5d4f7f4555ec608cf074747279a0f157a160d884..2fcf41124e2c5df2045aad7c5539178d5fa79a5f 100644
--- a/Source/core/xml/XMLHttpRequestProgressEventThrottle.cpp
+++ b/Source/core/xml/XMLHttpRequestProgressEventThrottle.cpp
@@ -101,8 +101,9 @@ void XMLHttpRequestProgressEventThrottle::dispatchEvent(PassRefPtrWillBeRawPtr<E
             return;
         }
         m_deferredEvents.append(event);
-    } else
+    } else {
         m_target->dispatchEvent(event);
+    }
 }
 
 bool XMLHttpRequestProgressEventThrottle::flushDeferredProgressEvent()