base: Change DCHECK_IS_ON to a macro DCHECK_IS_ON().

cc/layers/picture_layer_impl.cc

Index: cc/layers/picture_layer_impl.cc
diff --git a/cc/layers/picture_layer_impl.cc b/cc/layers/picture_layer_impl.cc
index 49e4d1f93226c2f3b7f95dad7f707d4cb4e829f4..718535bebc523b27d4abb6afeaff4ca19ab73a30 100644
--- a/cc/layers/picture_layer_impl.cc
+++ b/cc/layers/picture_layer_impl.cc
@@ -1115,7 +1115,7 @@ bool PictureLayerImpl::CanHaveTilings() const {
 }
 
 void PictureLayerImpl::SanityCheckTilingState() const {
-#if DCHECK_IS_ON
+#if DCHECK_IS_ON()
   // Recycle tree doesn't have any restrictions.
   if (layer_tree_impl()->IsRecycleTree())
     return;