Fix style erros in XPath-related files.

Source/core/xml/XPathVariableReference.cpp

Index: Source/core/xml/XPathVariableReference.cpp
diff --git a/Source/core/xml/XPathVariableReference.cpp b/Source/core/xml/XPathVariableReference.cpp
index 9d3ca1e145efc92f438ade19c9f2d430332d8228..8eb35c7be262ae0cb2c2707dab4492ae43476cb7 100644
--- a/Source/core/xml/XPathVariableReference.cpp
+++ b/Source/core/xml/XPathVariableReference.cpp
@@ -40,9 +40,11 @@ VariableReference::VariableReference(const String& name)
 Value VariableReference::evaluate() const
 {
     HashMap<String, String>& bindings = evaluationContext().variableBindings;
-    if (!bindings.contains(m_name))
-        // FIXME: Is this the right thing to do if an unknown variable is referenced?
+    if (!bindings.contains(m_name)) {
+        // FIXME: Is this the right thing to do if an unknown variable is
+        // referenced?
         return "";
+    }
     return bindings.get(m_name);
 }