[layout-ng] Convert ng_block_layout_algorithm to yield to the coordinator

third_party/WebKit/Source/core/layout/ng/ng_legacy_block_layout_algorithm.cc

Index: third_party/WebKit/Source/core/layout/ng/ng_legacy_block_layout_algorithm.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_legacy_block_layout_algorithm.cc b/third_party/WebKit/Source/core/layout/ng/ng_legacy_block_layout_algorithm.cc
new file mode 100644
index 0000000000000000000000000000000000000000..015213dd9c2b5a2e65acd9370e4ece2b4d47636f
--- /dev/null
+++ b/third_party/WebKit/Source/core/layout/ng/ng_legacy_block_layout_algorithm.cc
@@ -0,0 +1,31 @@
+// 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_legacy_block_layout_algorithm.h"
+
+#include "core/layout/ng/ng_physical_fragment.h"
+
+namespace blink {
+
+NGLegacyBlockLayoutAlgorithm::NGLegacyBlockLayoutAlgorithm(
+    NGBlockNode* block,
+    const NGConstraintSpace* constraint_space)
+    : NGLayoutAlgorithm(kLegacyBlockLayoutAlgorithm),
+      block_(block),
+      constraint_space_(constraint_space) {}
+
+NGLayoutStatus NGLegacyBlockLayoutAlgorithm::Layout(
+    NGPhysicalFragmentBase*,
+    NGPhysicalFragmentBase** fragment_out,
+    NGLayoutAlgorithm**) {
+  *fragment_out = block_->RunOldLayout(*constraint_space_);
+  return kNewFragment;
+}
+
+DEFINE_TRACE(NGLegacyBlockLayoutAlgorithm) {
+  NGLayoutAlgorithm::trace(visitor);
+  visitor->trace(block_);
+  visitor->trace(constraint_space_);
+}
+}