Add ClearanceOffset to LayoutNG Constraint space.

third_party/WebKit/Source/core/layout/ng/ng_constraint_space.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.h"
 
 #include "core/layout/LayoutBlock.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/ng/ng_constraint_space_builder.h"
 #include "core/layout/ng/ng_layout_opportunity_iterator.h"
 
 namespace blink {
 
 NGConstraintSpace::NGConstraintSpace(
     NGWritingMode writing_mode,
     TextDirection direction,
     NGLogicalSize available_size,
     NGLogicalSize percentage_resolution_size,
     NGPhysicalSize initial_containing_block_size,
     LayoutUnit fragmentainer_space_available,
     bool is_fixed_size_inline,
     bool is_fixed_size_block,
     bool is_shrink_to_fit,
     bool is_inline_direction_triggers_scrollbar,
     bool is_block_direction_triggers_scrollbar,
     NGFragmentationType block_direction_fragmentation_type,
     bool is_new_fc,
     const NGMarginStrut& margin_strut,
     const NGLogicalOffset& bfc_offset,
-    const std::shared_ptr<NGExclusions>& exclusions)
+    const std::shared_ptr<NGExclusions>& exclusions,
+    const WTF::Optional<LayoutUnit>& clearance_offset)
     : available_size_(available_size),
       percentage_resolution_size_(percentage_resolution_size),
       initial_containing_block_size_(initial_containing_block_size),
       fragmentainer_space_available_(fragmentainer_space_available),
       is_fixed_size_inline_(is_fixed_size_inline),
       is_fixed_size_block_(is_fixed_size_block),
       is_shrink_to_fit_(is_shrink_to_fit),
       is_inline_direction_triggers_scrollbar_(
           is_inline_direction_triggers_scrollbar),
       is_block_direction_triggers_scrollbar_(
           is_block_direction_triggers_scrollbar),
       block_direction_fragmentation_type_(block_direction_fragmentation_type),
       is_new_fc_(is_new_fc),
       writing_mode_(writing_mode),
       direction_(static_cast<unsigned>(direction)),
       margin_strut_(margin_strut),
       bfc_offset_(bfc_offset),
-      exclusions_(exclusions) {}
+      exclusions_(exclusions),
+      clearance_offset_(clearance_offset) {}
 
 NGConstraintSpace* NGConstraintSpace::CreateFromLayoutObject(
     const LayoutBox& box) {
   auto writing_mode = FromPlatformWritingMode(box.styleRef().getWritingMode());
   bool parallel_containing_block = IsParallelWritingMode(
       FromPlatformWritingMode(
           box.containingBlock()->styleRef().getWritingMode()),
       writing_mode);
   bool fixed_inline = false, fixed_block = false;
 
@@ skipping 63 matching lines @@
 
 NGFragmentationType NGConstraintSpace::BlockFragmentationType() const {
   return static_cast<NGFragmentationType>(block_direction_fragmentation_type_);
 }
 
 void NGConstraintSpace::Subtract(const NGBoxFragment*) {
   // TODO(layout-ng): Implement.
 }
 
 String NGConstraintSpace::ToString() const {
-  return String::format("Offset: %s,%s Size: %sx%s MarginStrut: %s",
-                        bfc_offset_.inline_offset.toString().ascii().data(),
-                        bfc_offset_.block_offset.toString().ascii().data(),
-                        AvailableSize().inline_size.toString().ascii().data(),
-                        AvailableSize().block_size.toString().ascii().data(),
-                        margin_strut_.ToString().ascii().data());
+  return String::format(
+      "Offset: %s,%s Size: %sx%s MarginStrut: %s"
+      " Clearance: %s",
+      bfc_offset_.inline_offset.toString().ascii().data(),
+      bfc_offset_.block_offset.toString().ascii().data(),
+      AvailableSize().inline_size.toString().ascii().data(),
+      AvailableSize().block_size.toString().ascii().data(),
+      margin_strut_.ToString().ascii().data(),
+      clearance_offset_.has_value()
+          ? clearance_offset_.value().toString().ascii().data()
+          : "none");
 }
 
 }  // namespace blink