[LayoutNG] Remove one NGConstraintSpace constructor, mark others for removal.

third_party/WebKit/Source/core/layout/ng/ng_constraint_space_test.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/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_layout_opportunity_iterator.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
 namespace {
 
 TEST(NGConstraintSpaceTest, WritingMode) {
   NGConstraintSpace* horz_space =
       new NGConstraintSpace(HorizontalTopBottom, LeftToRight,
                             NGLogicalSize(LayoutUnit(200), LayoutUnit(100)));
   horz_space->SetOverflowTriggersScrollbar(true, false);
   horz_space->SetFixedSize(true, false);
   horz_space->SetFragmentationType(FragmentColumn);
 
-  NGConstraintSpace* vert_space =
-      new NGConstraintSpace(VerticalRightLeft, LeftToRight, horz_space);
+  NGConstraintSpace* vert_space = new NGConstraintSpace(
+      VerticalRightLeft, LeftToRight, horz_space->MutablePhysicalSpace());
 
   EXPECT_EQ(LayoutUnit(200), horz_space->ContainerSize().inline_size);
   EXPECT_EQ(LayoutUnit(200), vert_space->ContainerSize().block_size);
 
   EXPECT_EQ(LayoutUnit(100), horz_space->ContainerSize().block_size);
   EXPECT_EQ(LayoutUnit(100), vert_space->ContainerSize().inline_size);
 
   EXPECT_TRUE(horz_space->InlineTriggersScrollbar());
   EXPECT_TRUE(vert_space->BlockTriggersScrollbar());
 
@@ skipping 166 matching lines @@
 
   bool for_inline_or_bfc = true;
   auto* iterator = space->LayoutOpportunities(NGClearNone, for_inline_or_bfc);
 
   EXPECT_EQ("0,0 600x100", OpportunityToString(iterator->Next()));
   EXPECT_EQ("(null)", OpportunityToString(iterator->Next()));
 }
 
 }  // namespace
 }  // namespace blink