[LayoutNG] Remove the ng_layout_coordinator and temporary LayoutSync method.

third_party/WebKit/Source/core/layout/ng/ng_text_layout_algorithm.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_text_layout_algorithm.h"
 
 #include "core/layout/ng/ng_box_fragment.h"
 #include "core/layout/ng/ng_break_token.h"
 #include "core/layout/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_fragment_builder.h"
 #include "core/layout/ng/ng_inline_node.h"
 #include "core/layout/ng/ng_line_builder.h"
 #include "core/layout/ng/ng_text_fragment.h"
 #include "core/style/ComputedStyle.h"
 
 namespace blink {
 
 NGTextLayoutAlgorithm::NGTextLayoutAlgorithm(
     NGInlineNode* inline_box,
     NGConstraintSpace* constraint_space,
     NGBreakToken* break_token)
     : NGLayoutAlgorithm(kTextLayoutAlgorithm),
       inline_box_(inline_box),
       constraint_space_(constraint_space),
       break_token_(break_token) {
   DCHECK(inline_box_);
 }
 
-NGLayoutStatus NGTextLayoutAlgorithm::Layout(NGPhysicalFragment*,
-                                             NGPhysicalFragment** fragment_out,
-                                             NGLayoutAlgorithm**) {
+NGPhysicalFragment* NGTextLayoutAlgorithm::Layout() {
   ASSERT_NOT_REACHED();
-  *fragment_out = nullptr;
-  return kNewFragment;
+  return nullptr;
 }
 
 bool NGTextLayoutAlgorithm::LayoutInline(NGLineBuilder* line_builder) {
   // TODO(kojii): Make this tickable. Each line is easy. Needs more thoughts
   // for each fragment in a line. Bidi reordering is probably atomic.
   // TODO(kojii): oof is not well-thought yet. The bottom static position may be
   // in the next line, https://github.com/w3c/csswg-drafts/issues/609
   const Vector<NGLayoutInlineItem>& items = inline_box_->Items();
   for (unsigned start_index = 0; start_index < items.size();) {
     const NGLayoutInlineItem& start_item = items[start_index];
@@ skipping 28 matching lines @@
 }
 
 DEFINE_TRACE(NGTextLayoutAlgorithm) {
   NGLayoutAlgorithm::trace(visitor);
   visitor->trace(inline_box_);
   visitor->trace(constraint_space_);
   visitor->trace(break_token_);
 }
 
 }  // namespace blink