CanUseNewLayout should work for more cases

third_party/WebKit/Source/core/layout/ng/ng_box.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/layout/ng/ng_box.h"
 
 #include "core/layout/LayoutBlockFlow.h"
 #include "core/layout/ng/layout_ng_block_flow.h"
 #include "core/layout/ng/ng_block_layout_algorithm.h"
 #include "core/layout/ng/ng_constraint_space.h"
@@ skipping 100 matching lines @@
     floating_object->setIsPlaced(true);
   }
 }
 
 bool NGBox::CanUseNewLayout() {
   if (!layout_box_)
     return true;
   if (!layout_box_->isLayoutBlockFlow())
     return false;
   const LayoutBlockFlow* block_flow = toLayoutBlockFlow(layout_box_);
-  return !block_flow->childrenInline() || !block_flow->firstChild();
+  LayoutObject* child = block_flow->firstChild();
+  while (child) {
+    if (child->isInline())
+      return false;
+    child = child->nextSibling();
+  }
+  return true;
 }
 
 void NGBox::CopyFragmentDataToLayoutBox(
     const NGConstraintSpace& constraint_space) {
   DCHECK(layout_box_);
   layout_box_->setWidth(fragment_->Width());
   layout_box_->setHeight(fragment_->Height());
   NGBoxStrut border_and_padding =
       ComputeBorders(*Style()) + ComputePadding(constraint_space, *Style());
   LayoutUnit intrinsic_logical_height =
@@ skipping 39 matching lines @@
       .SetBlockSize(layout_box_->logicalHeight())
       .SetDirection(FromPlatformDirection(layout_box_->styleRef().direction()))
       .SetWritingMode(
           FromPlatformWritingMode(layout_box_->styleRef().getWritingMode()))
       .SetInlineOverflow(overflow.width())
       .SetBlockOverflow(overflow.height());
   return builder.ToFragment();
 }
 
 }  // namespace blink