Adding allocator annotations to blink classes and structs.

Source/bindings/core/v8/V8NPUtils.h

Index: Source/bindings/core/v8/V8NPUtils.h
diff --git a/Source/bindings/core/v8/V8NPUtils.h b/Source/bindings/core/v8/V8NPUtils.h
index 39f7154a00857d538099ddc67da36481227eec28..06e77b3116067ece147317f070c554313b4b28f5 100644
--- a/Source/bindings/core/v8/V8NPUtils.h
+++ b/Source/bindings/core/v8/V8NPUtils.h
@@ -31,6 +31,7 @@
 #define V8NPUtils_h
 
 #include "core/CoreExport.h"
+#include "wtf/Allocator.h"
 #include <bindings/npruntime.h>
 #include <v8.h>
 
@@ -55,6 +56,7 @@ CORE_EXPORT void popExceptionHandler();
 // Upon destruction, an ExceptionCatcher will pass a caught exception to the
 // current ExceptionHandler.
 class ExceptionCatcher {
+    STACK_ALLOCATED();
 public:
     ExceptionCatcher();
     ~ExceptionCatcher();