Decouple memory() from Console

Source/core/timing/ConsoleMemory.h

+// Copyright 2015 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 ConsoleMemory_h
+#define ConsoleMemory_h
+
+#include "platform/Supplementable.h"
+
+namespace blink {
+
+class Console;
+class MemoryInfo;
+
+class ConsoleMemory final
+    : public NoBaseWillBeGarbageCollectedFinalized<ConsoleMemory>
+    , public WillBeHeapSupplement<Console> {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ConsoleMemory);
+    DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(ConsoleMemory);
+public:
+    static ConsoleMemory& from(Console&);
+    static MemoryInfo* memory(Console&);
+
+    DECLARE_VIRTUAL_TRACE();
+
+private:
+    static const char* supplementName();
+    MemoryInfo* memory();
+
+    PersistentWillBeMember<MemoryInfo> m_memory;

[kouhei (in TOK), 2015/02/24 14:50:57]

Please use RefPtrWillBeMember here, as MemoryInfo is RefCounted in non-Oilpan
builds.

+};
+
+} // namespace blink
+
+#endif // ConsoleMemory_h