NGInlineLayoutAlgorithm should take margins of inline floats into account

third_party/WebKit/Source/core/layout/ng/ng_length_utils.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_length_utils.h"
 
 #include "core/layout/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_constraint_space_builder.h"
 #include "core/layout/ng/ng_fragment.h"
 #include "core/style/ComputedStyle.h"
@@ skipping 382 matching lines @@
       constraint_space, style, empty_sizes, style.paddingAfter(),
       LengthResolveType::kMarginBorderPaddingSize);
   return padding;
 }
 
 void ApplyAutoMargins(const NGConstraintSpace& constraint_space,
                       const ComputedStyle& style,
                       const LayoutUnit& inline_size,
                       NGBoxStrut* margins) {
   DCHECK(margins) << "Margins cannot be NULL here";
+
+  if (style.isFloating())
+    return;
+
   const LayoutUnit used_space = inline_size + margins->InlineSum();
   const LayoutUnit available_space =
       constraint_space.AvailableSize().inline_size - used_space;
   if (available_space < LayoutUnit())
     return;
   if (style.marginStart().isAuto() && style.marginEnd().isAuto()) {
     margins->inline_start = available_space / 2;
     margins->inline_end = available_space - margins->inline_start;
   } else if (style.marginStart().isAuto()) {
     margins->inline_start = available_space;
   } else if (style.marginEnd().isAuto()) {
     margins->inline_end = available_space;
   }
 }
 
 LayoutUnit ConstrainByMinMax(LayoutUnit length,
                              Optional<LayoutUnit> min,
                              Optional<LayoutUnit> max) {
   if (max && length > max.value())
     length = max.value();
   if (min && length < min.value())
     length = min.value();
   return length;
 }
 
 }  // namespace blink