[WIP] do something :-)

Source/platform/fonts/FontDescription.cpp

Index: Source/platform/fonts/FontDescription.cpp
diff --git a/Source/platform/fonts/FontDescription.cpp b/Source/platform/fonts/FontDescription.cpp
index b26c41fbcfd00fe2e4aa18aa40964059dd6be770..80cceceee5a9b4daded45498a5f49b49b3573c2c 100644
--- a/Source/platform/fonts/FontDescription.cpp
+++ b/Source/platform/fonts/FontDescription.cpp
@@ -31,22 +31,13 @@
 #include "platform/fonts/FontDescription.h"
 
 #include "platform/RuntimeEnabledFeatures.h"
+#include "wtf/SizeAssertions.h"
 #include "wtf/text/AtomicStringHash.h"
 #include "wtf/text/StringHash.h"
 
 namespace blink {
 
-struct SameSizeAsFontDescription {
-    FontFamily familyList;
-    RefPtr<FontFeatureSettings> m_featureSettings;
-    AtomicString locale;
-    float sizes[6];
-    // FXIME: Make them fit into one word.
-    uint32_t bitfields;
-    uint32_t bitfields2 : 7;
-};
-
-static_assert(sizeof(FontDescription) == sizeof(SameSizeAsFontDescription), "FontDescription should stay small");
+ASSERT_SIZE(FontDescription, 48, 64);
 
 TypesettingFeatures FontDescription::s_defaultTypesettingFeatures = 0;