Fix alignment issue of ContiguousContainer

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

Index: third_party/WebKit/Source/platform/graphics/paint/DisplayItemList.h
diff --git a/third_party/WebKit/Source/platform/graphics/paint/DisplayItemList.h b/third_party/WebKit/Source/platform/graphics/paint/DisplayItemList.h
index df66a43554e4b57da1d837455726df276cecd088..cfc0f83c8bf2d8cc9a9fa2579c3c74c295f4ca4f 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/DisplayItemList.h
+++ b/third_party/WebKit/Source/platform/graphics/paint/DisplayItemList.h
@@ -17,15 +17,10 @@ namespace blink {
 
 struct PaintChunk;
 
-// kDisplayItemAlignment must be a multiple of alignof(derived display item) for
-// each derived display item; the ideal value is the least common multiple.
-// Currently the limiting factor is TransformationMatrix (in
-// BeginTransform3DDisplayItem), which requests 16-byte alignment.
-static const size_t kDisplayItemAlignment = WTF_ALIGN_OF(BeginTransform3DDisplayItem);
 static const size_t kMaximumDisplayItemSize = sizeof(BeginTransform3DDisplayItem);
 
 // A container for a list of display items.
-class PLATFORM_EXPORT DisplayItemList : public ContiguousContainer<DisplayItem, kDisplayItemAlignment> {
+class PLATFORM_EXPORT DisplayItemList : public ContiguousContainer<DisplayItem> {
 public:
     DisplayItemList(size_t initialSizeBytes)
         : ContiguousContainer(kMaximumDisplayItemSize, initialSizeBytes) {}