Devirtualize Visitor and remove inline visitor specialization.

third_party/WebKit/Source/web/WebMemoryStatistics.cpp

 // 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 "public/web/WebMemoryStatistics.h"
 
-#include "platform/heap/Heap.h"
+#include "platform/heap/Handle.h"
 #include "wtf/allocator/Partitions.h"
 
 namespace blink {
 
 namespace {
 
 class LightPartitionStatsDumperImpl : public WTF::PartitionStatsDumper {
  public:
   LightPartitionStatsDumperImpl() : m_totalActiveBytes(0) {}
 
@@ skipping 22 matching lines @@
   WTF::Partitions::dumpMemoryStats(true, &dumper);
   statistics.partitionAllocTotalAllocatedBytes = dumper.totalActiveBytes();
 
   statistics.blinkGCTotalAllocatedBytes =
       ProcessHeap::totalAllocatedObjectSize() +
       ProcessHeap::totalMarkedObjectSize();
   return statistics;
 }
 
 }  // namespace blink