[WIP] do something :-)

Source/platform/scroll/ScrollableArea.cpp

Index: Source/platform/scroll/ScrollableArea.cpp
diff --git a/Source/platform/scroll/ScrollableArea.cpp b/Source/platform/scroll/ScrollableArea.cpp
index 324499011a62f40bca0b7400a0d4eebbb8c02e67..512c940a98e734fef9c03e4860b370c72b220522 100644
--- a/Source/platform/scroll/ScrollableArea.cpp
+++ b/Source/platform/scroll/ScrollableArea.cpp
@@ -41,6 +41,7 @@
 #include "platform/scroll/ProgrammaticScrollAnimator.h"
 #include "platform/scroll/ScrollbarTheme.h"
 #include "wtf/PassOwnPtr.h"
+#include "wtf/SizeAssertions.h"
 
 #include "platform/TraceEvent.h"
 
@@ -49,18 +50,7 @@ static const float kMinFractionToStepWhenPaging = 0.875f;
 
 namespace blink {
 
-struct SameSizeAsScrollableArea {
-    virtual ~SameSizeAsScrollableArea();
-    IntRect scrollbarDamage[2];
-#if ENABLE(ASSERT) && ENABLE(OILPAN)
-    VerifyEagerFinalization verifyEager;
-#endif
-    void* pointer;
-    unsigned bitfields : 16;
-    IntPoint origin;
-};
-
-static_assert(sizeof(ScrollableArea) == sizeof(SameSizeAsScrollableArea), "ScrollableArea should stay small");
+ASSERT_SIZE(ScrollableArea, 52, 64);
 
 int ScrollableArea::pixelsPerLineStep()
 {