[LayoutNG] Abort a layout once the BFC offset is resolved.

third_party/WebKit/Source/core/layout/ng/ng_constraint_space_builder.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_constraint_space_builder.h"
 
 #include "core/layout/ng/ng_length_utils.h"
 
 namespace blink {
 
@@ skipping 127 matching lines @@
 }
 
 NGConstraintSpaceBuilder& NGConstraintSpaceBuilder::SetIsAnonymous(
     bool is_anonymous) {
   is_anonymous_ = is_anonymous;
   return *this;
 }
 
 NGConstraintSpaceBuilder& NGConstraintSpaceBuilder::SetUnpositionedFloats(
     Vector<RefPtr<NGUnpositionedFloat>>& unpositioned_floats) {
-  unpositioned_floats_.swap(unpositioned_floats);
+  unpositioned_floats_ = unpositioned_floats;
   return *this;
 }
 
 void NGConstraintSpaceBuilder::AddBaselineRequests(
     const Vector<NGBaselineRequest>& requests) {
   baseline_requests_.AppendVector(requests);
 }
 
 NGConstraintSpaceBuilder& NGConstraintSpaceBuilder::AddBaselineRequest(
     NGBaselineAlgorithmType algorithm_type,
@@ skipping 44 matching lines @@
       is_new_fc_ ? std::make_shared<NGExclusions>() : exclusions_);
   if (is_new_fc_)
     DCHECK(unpositioned_floats_.IsEmpty());
   NGLogicalOffset bfc_offset = is_new_fc_ ? NGLogicalOffset() : bfc_offset_;
   NGMarginStrut margin_strut = is_new_fc_ ? NGMarginStrut() : margin_strut_;
   WTF::Optional<LayoutUnit> clearance_offset =
       is_new_fc_ ? WTF::nullopt : clearance_offset_;
   WTF::Optional<NGLogicalOffset> floats_bfc_offset =
       is_new_fc_ ? WTF::nullopt : floats_bfc_offset_;
 
-  // The inline_offsets of the bfc_offset and floats_bfc_offset should match.
-  if (floats_bfc_offset)
-    DCHECK_EQ(bfc_offset.inline_offset,
-              floats_bfc_offset.value().inline_offset);
+  if (floats_bfc_offset) {
+    floats_bfc_offset = NGLogicalOffset(
+        {bfc_offset.inline_offset, floats_bfc_offset.value().block_offset});
+  }
 
   if (is_in_parallel_flow) {
     return AdoptRef(new NGConstraintSpace(
         static_cast<NGWritingMode>(out_writing_mode),
         static_cast<TextDirection>(text_direction_), available_size,
         percentage_resolution_size, initial_containing_block_size_,
         fragmentainer_space_available_, is_fixed_size_inline_,
         is_fixed_size_block_, is_shrink_to_fit_,
         is_inline_direction_triggers_scrollbar_,
         is_block_direction_triggers_scrollbar_,
         static_cast<NGFragmentationType>(fragmentation_type_), is_new_fc_,
         is_anonymous_, margin_strut, bfc_offset, floats_bfc_offset, exclusions,
         unpositioned_floats_, clearance_offset, baseline_requests_));
   }
   return AdoptRef(new NGConstraintSpace(
       out_writing_mode, static_cast<TextDirection>(text_direction_),
       available_size, percentage_resolution_size,
       initial_containing_block_size_, fragmentainer_space_available_,
       is_fixed_size_block_, is_fixed_size_inline_, is_shrink_to_fit_,
       is_block_direction_triggers_scrollbar_,
       is_inline_direction_triggers_scrollbar_,
       static_cast<NGFragmentationType>(fragmentation_type_), is_new_fc_,
       is_anonymous_, margin_strut, bfc_offset, floats_bfc_offset, exclusions,
       unpositioned_floats_, clearance_offset, baseline_requests_));
 }
 
 }  // namespace blink