[LayoutNG] Initial pass of removing the state machine from ng_block_layout_algorithm.

third_party/WebKit/Source/core/layout/ng/ng_block_layout_algorithm_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_block_layout_algorithm.h"
 
 #include "core/layout/ng/ng_block_node.h"
 #include "core/layout/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_constraint_space_builder.h"
 #include "core/layout/ng/ng_layout_coordinator.h"
@@ skipping 22 matching lines @@
 
 class NGBlockLayoutAlgorithmTest : public ::testing::Test {
  protected:
   void SetUp() override { style_ = ComputedStyle::create(); }
 
   NGPhysicalBoxFragment* RunBlockLayoutAlgorithm(NGConstraintSpace* space,
                                                  NGBlockNode* first_child) {
     NGBlockNode parent(style_.get());
     parent.SetFirstChild(first_child);
 
-    NGLayoutCoordinator coordinator(&parent, space);
+    NGBlockLayoutAlgorithm algorithm(style_.get(), first_child, space);
+
     NGPhysicalFragment* fragment;
-    coordinator.Tick(&fragment);
-    EXPECT_EQ(kBlockLayoutAlgorithm,
-              coordinator.GetAlgorithmStackForTesting()[0]->algorithmType());
-    while (!coordinator.Tick(&fragment))
-      ;
+    NGLayoutAlgorithm* not_used;
+    EXPECT_EQ(kNewFragment, algorithm.Layout(nullptr, &fragment, &not_used));
 
     return toNGPhysicalBoxFragment(fragment);
   }
 
   MinAndMaxContentSizes RunComputeMinAndMax(NGBlockNode* first_child) {
     // The constraint space is not used for min/max computation, but we need
     // it to create the algorithm.
     NGConstraintSpace* space =
         ConstructConstraintSpace(kHorizontalTopBottom, TextDirection::kLtr,
                                  NGLogicalSize(LayoutUnit(), LayoutUnit()));
@@ skipping 1493 matching lines @@
   EXPECT_EQ(LayoutUnit(194), fragment->LeftOffset());
   EXPECT_EQ(LayoutUnit(), fragment->TopOffset());
   EXPECT_EQ(LayoutUnit(16), fragment->Width());
   EXPECT_EQ(LayoutUnit(50), fragment->Height());
   EXPECT_EQ(0UL, fragment->Children().size());
   EXPECT_FALSE(iterator.NextChild());
 }
 
 }  // namespace
 }  // namespace blink