Merge from Chromium at DEPS revision 257591

This commit was generated by merge_to_master.py.

Change-Id: I834f3ca85c1ef7ec2c1061847a3d92aa461da043
diff --git a/Source/core/css/CSSFilterRule.cpp b/Source/core/css/CSSFilterRule.cpp
index dc44874..f533a51 100644
--- a/Source/core/css/CSSFilterRule.cpp
+++ b/Source/core/css/CSSFilterRule.cpp
@@ -65,7 +65,7 @@
     result.append(filterName);
     result.appendLiteral(" { ");
 
-    String descs = m_filterRule->properties()->asText();
+    String descs = m_filterRule->properties().asText();
     result.append(descs);
     if (!descs.isEmpty())
         result.append(' ');
@@ -82,5 +82,11 @@
         m_propertiesCSSOMWrapper->reattach(m_filterRule->mutableProperties());
 }
 
+void CSSFilterRule::trace(Visitor* visitor)
+{
+    visitor->trace(m_filterRule);
+    CSSRule::trace(visitor);
+}
+
 } // namespace WebCore