Remove ASSERT_ARG().

third_party/WebKit/Source/core/layout/LayoutRubyBase.cpp

Index: third_party/WebKit/Source/core/layout/LayoutRubyBase.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutRubyBase.cpp b/third_party/WebKit/Source/core/layout/LayoutRubyBase.cpp
index 0daa18e608878bffcaa1e5607f3dc54a1f6a0bdc..9a2eb8b4f827f0f31434e452d2404467bf359546 100644
--- a/third_party/WebKit/Source/core/layout/LayoutRubyBase.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutRubyBase.cpp
@@ -60,7 +60,7 @@ void LayoutRubyBase::moveChildren(LayoutRubyBase* toBase, LayoutObject* beforeCh
 {
     // This function removes all children that are before (!) beforeChild
     // and appends them to toBase.
-    ASSERT_ARG(toBase, toBase);
+    DCHECK(toBase);
     // Callers should have handled the percent height descendant map.
     ASSERT(!hasPercentHeightDescendants());
 
@@ -79,7 +79,7 @@ void LayoutRubyBase::moveChildren(LayoutRubyBase* toBase, LayoutObject* beforeCh
 void LayoutRubyBase::moveInlineChildren(LayoutRubyBase* toBase, LayoutObject* beforeChild)
 {
     ASSERT(childrenInline());
-    ASSERT_ARG(toBase, toBase);
+    DCHECK(toBase);
 
     if (!firstChild())
         return;
@@ -106,7 +106,7 @@ void LayoutRubyBase::moveInlineChildren(LayoutRubyBase* toBase, LayoutObject* be
 void LayoutRubyBase::moveBlockChildren(LayoutRubyBase* toBase, LayoutObject* beforeChild)
 {
     ASSERT(!childrenInline());
-    ASSERT_ARG(toBase, toBase);
+    DCHECK(toBase);
 
     if (!firstChild())
         return;