Allow assertions to be enabled in Blink Release builds.

Source/core/svg/SVGElement.cpp

Index: Source/core/svg/SVGElement.cpp
diff --git a/Source/core/svg/SVGElement.cpp b/Source/core/svg/SVGElement.cpp
index 837222ef47dd39c0a346614f4dc17f53e11a5437..3f6a740ae7a6c1b65dcc70b9783e03dfe20f5050 100644
--- a/Source/core/svg/SVGElement.cpp
+++ b/Source/core/svg/SVGElement.cpp
@@ -57,7 +57,7 @@ using namespace SVGNames;
 
 SVGElement::SVGElement(const QualifiedName& tagName, Document& document, ConstructionType constructionType)
     : Element(tagName, &document, constructionType)
-#if ASSERT_ENABLED
+#if ENABLE(ASSERT)
     , m_inRelativeLengthClientsInvalidation(false)
 #endif
     // |m_isContextElement| must be initialized before |m_className|, as SVGAnimatedString tear-off c-tor currently set this to true.
@@ -416,7 +416,7 @@ void SVGElement::invalidateRelativeLengthClients(SubtreeLayoutScope* layoutScope
         return;
 
     ASSERT(!m_inRelativeLengthClientsInvalidation);
-#if ASSERT_ENABLED
+#if ENABLE(ASSERT)
     TemporaryChange<bool> inRelativeLengthClientsInvalidationChange(m_inRelativeLengthClientsInvalidation, true);
 #endif
 
@@ -986,7 +986,7 @@ SVGElement::InstanceUpdateBlocker::~InstanceUpdateBlocker()
         m_targetElement->setInstanceUpdatesBlocked(false);
 }
 
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
 bool SVGElement::isAnimatableAttribute(const QualifiedName& name) const
 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, animatableAttributes, ());