Make classes and structures in core/frame fast-allocated.

Source/core/frame/PageScaleConstraints.h

Index: Source/core/frame/PageScaleConstraints.h
diff --git a/Source/core/frame/PageScaleConstraints.h b/Source/core/frame/PageScaleConstraints.h
index d5874b5fe5d1c47b939ac12346ffc008b4fbd078..1e8dd9637490b1fa8dedb3a4d7880234f0b30141 100644
--- a/Source/core/frame/PageScaleConstraints.h
+++ b/Source/core/frame/PageScaleConstraints.h
@@ -33,10 +33,12 @@
 
 #include "core/CoreExport.h"
 #include "platform/geometry/FloatSize.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
 struct CORE_EXPORT PageScaleConstraints {
+    DISALLOW_ALLOCATION();
     FloatSize layoutSize;
 
     float initialScale;