Fix alignment issue of ContiguousContainer

third_party/WebKit/Source/platform/graphics/paint/FilterDisplayItem.h

Index: third_party/WebKit/Source/platform/graphics/paint/FilterDisplayItem.h
diff --git a/third_party/WebKit/Source/platform/graphics/paint/FilterDisplayItem.h b/third_party/WebKit/Source/platform/graphics/paint/FilterDisplayItem.h
index 8eee7b6d77c390f367993bf2fce5c788d9bbc87c..a0c7412d7891d95c1447f28e2780173630a931d3 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/FilterDisplayItem.h
+++ b/third_party/WebKit/Source/platform/graphics/paint/FilterDisplayItem.h
@@ -16,10 +16,10 @@
 
 namespace blink {
 
-class PLATFORM_EXPORT BeginFilterDisplayItem final : public PairedBeginDisplayItem {
+class PLATFORM_EXPORT BeginFilterDisplayItem final : public PairedBeginDisplayItem<BeginFilterDisplayItem> {
 public:
     BeginFilterDisplayItem(const DisplayItemClient& client, sk_sp<SkImageFilter> imageFilter, const FloatRect& bounds, std::unique_ptr<CompositorFilterOperations> filterOperations = nullptr)
-        : PairedBeginDisplayItem(client, BeginFilter, sizeof(*this))
+        : PairedBeginDisplayItem(client, BeginFilter)
         , m_imageFilter(std::move(imageFilter))
         , m_webFilterOperations(std::move(filterOperations))
         , m_bounds(bounds) { }
@@ -47,10 +47,10 @@ private:
     const FloatRect m_bounds;
 };
 
-class PLATFORM_EXPORT EndFilterDisplayItem final : public PairedEndDisplayItem {
+class PLATFORM_EXPORT EndFilterDisplayItem final : public PairedEndDisplayItem<EndFilterDisplayItem> {
 public:
     EndFilterDisplayItem(const DisplayItemClient& client)
-        : PairedEndDisplayItem(client, EndFilter, sizeof(*this)) { }
+        : PairedEndDisplayItem(client, EndFilter) { }
 
     void replay(GraphicsContext&) const override;
     void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const override;