Fix alignment issue of ContiguousContainer

third_party/WebKit/Source/core/paint/PaintControllerPaintTest.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 PaintControllerPaintTest_h
 #define PaintControllerPaintTest_h
 
 #include "core/frame/FrameView.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutView.h"
@@ skipping 80 matching lines @@
     PaintControllerPaintTestForSlimmingPaintV2() : PaintControllerPaintTestBase(true) { }
 };
 
 class PaintControllerPaintTestForSlimmingPaintV1AndV2
     : public PaintControllerPaintTestBase
     , public testing::WithParamInterface<bool> {
 public:
     PaintControllerPaintTestForSlimmingPaintV1AndV2() : PaintControllerPaintTestBase(GetParam()) { }
 };
 
-class TestDisplayItem final : public DisplayItem {
+class TestDisplayItem final : public DisplayItemBase<TestDisplayItem> {
 public:
-    TestDisplayItem(const DisplayItemClient& client, Type type) : DisplayItem(client, type, sizeof(*this)) { }
+    TestDisplayItem(const DisplayItemClient& client, Type type) : DisplayItemBase(client, type) { }
 
     void replay(GraphicsContext&) const final { ASSERT_NOT_REACHED(); }
     void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const final { ASSERT_NOT_REACHED(); }
 };
 
 #ifndef NDEBUG
 #define TRACE_DISPLAY_ITEMS(i, expected, actual) \
     String trace = String::format("%d: ", (int)i) + "Expected: " + (expected).asDebugString() + " Actual: " + (actual).asDebugString(); \
     SCOPED_TRACE(trace.utf8().data());
 #else
@@ skipping 17 matching lines @@
 const DisplayItem::Type backgroundType = DisplayItem::BoxDecorationBackground;
 const DisplayItem::Type cachedBackgroundType = DisplayItem::drawingTypeToCachedDrawingType(backgroundType);
 const DisplayItem::Type foregroundType = DisplayItem::paintPhaseToDrawingType(PaintPhaseForeground);
 const DisplayItem::Type cachedForegroundType = DisplayItem::drawingTypeToCachedDrawingType(foregroundType);
 const DisplayItem::Type documentBackgroundType = DisplayItem::DocumentBackground;
 const DisplayItem::Type cachedDocumentBackgroundType = DisplayItem::drawingTypeToCachedDrawingType(DisplayItem::DocumentBackground);
 
 } // namespace blink
 
 #endif // PaintControllerPaintTest_h