[WIP] do something :-)

Source/platform/Length.cpp

Index: Source/platform/Length.cpp
diff --git a/Source/platform/Length.cpp b/Source/platform/Length.cpp
index 3b5bdc1aa4da4dd34470238ea0987598e508ba95..63162422b18c79c3eca7db13ce43997ba1b2bd36 100644
--- a/Source/platform/Length.cpp
+++ b/Source/platform/Length.cpp
@@ -28,6 +28,7 @@
 #include "platform/CalculationValue.h"
 #include "platform/animation/AnimationUtilities.h"
 #include "wtf/ASCIICType.h"
+#include "wtf/SizeAssertions.h"
 #include "wtf/text/StringBuffer.h"
 #include "wtf/text/WTFString.h"
 
@@ -35,6 +36,8 @@ using namespace WTF;
 
 namespace blink {
 
+ASSERT_SIZE(Length, 8, 8);
+
 template<typename CharType>
 static unsigned splitLength(const CharType* data, unsigned length, unsigned& intLength, unsigned& doubleLength)
 {
@@ -242,10 +245,4 @@ bool Length::isCalculatedEqual(const Length& o) const
     return isCalculated() && (&calculationValue() == &o.calculationValue() || calculationValue() == o.calculationValue());
 }
 
-struct SameSizeAsLength {
-    int32_t value;
-    int32_t metaData;
-};
-static_assert(sizeof(Length) == sizeof(SameSizeAsLength), "length should stay small");
-
 } // namespace blink