Allow assertions to be enabled in Blink Release builds.

Source/core/rendering/svg/RenderSVGText.cpp

Index: Source/core/rendering/svg/RenderSVGText.cpp
diff --git a/Source/core/rendering/svg/RenderSVGText.cpp b/Source/core/rendering/svg/RenderSVGText.cpp
index 7d73270e00da4463963d81288680fa2d595e31fe..93222234cb3c29b468c0ccc6981f8af4ff2ed84a 100644
--- a/Source/core/rendering/svg/RenderSVGText.cpp
+++ b/Source/core/rendering/svg/RenderSVGText.cpp
@@ -196,7 +196,7 @@ void RenderSVGText::subtreeChildWasAdded(RenderObject* child)
         }
     }
 
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     // Verify that m_layoutAttributes only differs by a maximum of one entry.
     for (size_t i = 0; i < size; ++i)
         ASSERT(m_layoutAttributes.find(newLayoutAttributes[i]) != kNotFound || newLayoutAttributes[i] == attributes);
@@ -207,7 +207,7 @@ void RenderSVGText::subtreeChildWasAdded(RenderObject* child)
 
 static inline void checkLayoutAttributesConsistency(RenderSVGText* text, Vector<SVGTextLayoutAttributes*>& expectedLayoutAttributes)
 {
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     Vector<SVGTextLayoutAttributes*> newLayoutAttributes;
     collectLayoutAttributes(text, newLayoutAttributes);
     ASSERT(newLayoutAttributes == expectedLayoutAttributes);