[LayoutNG] Fix incorrectly positioned empty blocks inside of new BFC

third_party/WebKit/Source/core/layout/ng/ng_units.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_units.h"
 
 namespace blink {
 
 LayoutUnit MinAndMaxContentSizes::ShrinkToFit(LayoutUnit available_size) const {
   DCHECK_GE(max_content, min_content);
@@ skipping 82 matching lines @@
             block_offset,
             outer_size.height - inline_offset - inner_size.height);
       else
         return NGPhysicalOffset(block_offset, inline_offset);
     default:
       ASSERT_NOT_REACHED();
       return NGPhysicalOffset();
   }
 }
 
+bool NGPhysicalOffset::operator==(const NGPhysicalOffset& other) const {

[ikilpatrick, 2017/02/16 17:27:38]

.nit move to after NGPhysicalOffset::operator-= ?

[Gleb Lanbin, 2017/02/16 20:08:27]

Done.

+  return other.left == left && other.top == top;
+}
+
 bool NGLogicalOffset::operator==(const NGLogicalOffset& other) const {
   return std::tie(other.inline_offset, other.block_offset) ==
          std::tie(inline_offset, block_offset);
 }
 
 NGLogicalOffset NGLogicalOffset::operator+(const NGLogicalOffset& other) const {
   NGLogicalOffset result;
   result.inline_offset = this->inline_offset + other.inline_offset;
   result.block_offset = this->block_offset + other.block_offset;
   return result;
@@ skipping 168 matching lines @@
       break;
     case kSidewaysLeftRight:
       position.type =
           (direction == TextDirection::kLtr) ? kBottomLeft : kTopLeft;
       break;
   }
   return position;
 }
 
 }  // namespace blink