Fix alignment issue of ContiguousContainer

third_party/WebKit/Source/platform/graphics/paint/ForeignLayerDisplayItem.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 "platform/graphics/paint/ForeignLayerDisplayItem.h"
 
 #include "cc/layers/layer.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/paint/PaintController.h"
 #include "public/platform/WebLayer.h"
 #include "wtf/Assertions.h"
 #include <utility>
 
 namespace blink {
 
 ForeignLayerDisplayItem::ForeignLayerDisplayItem(
     const DisplayItemClient& client, Type type,
     scoped_refptr<cc::Layer> layer,
     const FloatPoint& location, const IntSize& bounds)
-    : DisplayItem(client, type, sizeof(*this))
+    : DisplayItemBase(client, type)
     , m_layer(std::move(layer))
     , m_location(location)
     , m_bounds(bounds)
 {
     ASSERT(RuntimeEnabledFeatures::slimmingPaintV2Enabled());
     ASSERT(isForeignLayerType(type));
     ASSERT(m_layer);
 }
 
 ForeignLayerDisplayItem::~ForeignLayerDisplayItem()
@@ skipping 36 matching lines @@
     WebLayer* webLayer, const FloatPoint& location, const IntSize& bounds)
 {
     PaintController& paintController = context.getPaintController();
     if (paintController.displayItemConstructionIsDisabled())
         return;
 
     paintController.createAndAppend<ForeignLayerDisplayItem>(client, type, webLayer->ccLayer(), location, bounds);
 }
 
 } // namespace blink