Oilpan: Fix the CSSKeyframesRule destructor.

Source/core/css/CSSKeyframesRule.cpp

Index: Source/core/css/CSSKeyframesRule.cpp
diff --git a/Source/core/css/CSSKeyframesRule.cpp b/Source/core/css/CSSKeyframesRule.cpp
index ce8fc273ea25b72d15cdf072570074675a3d1d74..312d7cc8c210dbddaafeef09b3419f2f42b240cb 100644
--- a/Source/core/css/CSSKeyframesRule.cpp
+++ b/Source/core/css/CSSKeyframesRule.cpp
@@ -96,9 +96,8 @@ CSSKeyframesRule::CSSKeyframesRule(StyleRuleKeyframes* keyframesRule, CSSStyleSh
 
 CSSKeyframesRule::~CSSKeyframesRule()
 {
-    ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
-
 #if !ENABLE(OILPAN)
+    ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
     for (unsigned i = 0; i < m_childRuleCSSOMWrappers.size(); ++i) {
         if (m_childRuleCSSOMWrappers[i])
             m_childRuleCSSOMWrappers[i]->setParentRule(0);