[LayoutNG] Remove derived constraint spaces from opportunity iterator.

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_layout_opportunity_iterator.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
@@ skipping 26 matching lines @@
   EXPECT_TRUE(horz_space->FixedInlineSize());
   EXPECT_TRUE(vert_space->FixedBlockSize());
 
   EXPECT_FALSE(horz_space->FixedBlockSize());
   EXPECT_FALSE(vert_space->FixedInlineSize());
 
   EXPECT_EQ(FragmentColumn, horz_space->BlockFragmentationType());
   EXPECT_EQ(FragmentNone, vert_space->BlockFragmentationType());
 }
 
-static String OpportunityToString(const NGConstraintSpace* opportunity) {
+static String OpportunityToString(const NGLogicalRect* opportunity) {
   return opportunity ? opportunity->ToString() : String("(null)");
 }
 
 TEST(NGConstraintSpaceTest, LayoutOpportunitiesNoExclusions) {
   NGPhysicalSize physical_size;
   physical_size.width = LayoutUnit(600);
   physical_size.height = LayoutUnit(400);
   auto* physical_space = new NGPhysicalConstraintSpace(physical_size);
   auto* space =
       new NGConstraintSpace(HorizontalTopBottom, LeftToRight, physical_space);
@@ skipping 142 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