Replace ASSERT with DCHECK in core/layout/<sub dirs>

third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.h

Index: third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.h
diff --git a/third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.h b/third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.h
index 42ae1718d8079691b824bdead98ef9d6c4ca5623..082573f3b2a0aaea0b5cae61612b5f01253aed35 100644
--- a/third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.h
+++ b/third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.h
@@ -40,11 +40,11 @@ class LayoutSVGContainer : public LayoutSVGModelObject {
   void slowLastChild() const = delete;
 
   LayoutObject* firstChild() const {
-    ASSERT(children() == virtualChildren());
+    DCHECK_EQ(children(), virtualChildren());
     return children()->firstChild();
   }
   LayoutObject* lastChild() const {
-    ASSERT(children() == virtualChildren());
+    DCHECK_EQ(children(), virtualChildren());
     return children()->lastChild();
   }