Devirtualize Visitor and remove inline visitor specialization.

third_party/WebKit/Source/platform/heap/InlinedGlobalMarkingVisitor.h

-// Copyright 2014 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.
-
-#ifndef InlinedGlobalMarkingVisitor_h
-#define InlinedGlobalMarkingVisitor_h
-
-#include "platform/heap/MarkingVisitorImpl.h"
-
-namespace blink {
-
-class InlinedGlobalMarkingVisitor final
-    : public VisitorHelper<InlinedGlobalMarkingVisitor>,
-      public MarkingVisitorImpl<InlinedGlobalMarkingVisitor> {
- public:
-  friend class VisitorHelper<InlinedGlobalMarkingVisitor>;
-  using Helper = VisitorHelper<InlinedGlobalMarkingVisitor>;
-  friend class MarkingVisitorImpl<InlinedGlobalMarkingVisitor>;
-  using Impl = MarkingVisitorImpl<InlinedGlobalMarkingVisitor>;
-
-  InlinedGlobalMarkingVisitor(ThreadState* state,
-                              VisitorMarkingMode markingMode)
-      : VisitorHelper(state, markingMode) {}
-
-  // Hack to unify interface to visitor->trace().
-  // Without this hack, we need to use visitor.trace() for
-  // trace(InlinedGlobalMarkingVisitor) and visitor->trace() for
-  // trace(Visitor*).
-  InlinedGlobalMarkingVisitor* operator->() { return this; }
-
-  using Impl::mark;
-  using Impl::ensureMarked;
-  using Impl::registerDelayedMarkNoTracing;
-  using Impl::registerWeakTable;
-  using Impl::registerWeakMembers;
-#if DCHECK_IS_ON()
-  using Impl::weakTableRegistered;
-#endif
-
-  template <typename T>
-  void mark(T* t) {
-    Helper::mark(t);
-  }
-
-  template <typename T, void (T::*method)(Visitor*)>
-  void registerWeakMembers(const T* obj) {
-    Helper::template registerWeakMembers<T, method>(obj);
-  }
-
- private:
-  static InlinedGlobalMarkingVisitor fromHelper(Helper* helper) {
-    return *static_cast<InlinedGlobalMarkingVisitor*>(helper);
-  }
-};
-
-inline void GarbageCollectedMixin::trace(InlinedGlobalMarkingVisitor) {}
-
-}  // namespace blink
-
-#endif