[LayoutNG] Make NG algorithms non-oilpan.

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),
+    : inline_box_(inline_box),
       constraint_space_(constraint_space),
       break_token_(break_token) {
   DCHECK(inline_box_);
 }
 
 NGPhysicalFragment* NGTextLayoutAlgorithm::Layout() {
   ASSERT_NOT_REACHED();
   return nullptr;
 }
 
@@ skipping 27 matching lines @@
         break;
       }
       inline_size += item.InlineSize();
     }
     line_builder->Add(start_index, i, inline_size);
     start_index = i;
   }
   line_builder->CreateLine();
 }
 
-DEFINE_TRACE(NGTextLayoutAlgorithm) {
-  NGLayoutAlgorithm::trace(visitor);
-  visitor->trace(inline_box_);
-  visitor->trace(constraint_space_);
-  visitor->trace(break_token_);
-}
-
 }  // namespace blink