Adding allocator annotations to blink classes and structs.

Source/bindings/core/v8/SerializedScriptValueFactory.h

Index: Source/bindings/core/v8/SerializedScriptValueFactory.h
diff --git a/Source/bindings/core/v8/SerializedScriptValueFactory.h b/Source/bindings/core/v8/SerializedScriptValueFactory.h
index b4122fbd574d57932df1fde248a3a8e7e80fa858..740a8b16de28783d596f59bc2d9907b0af76744d 100644
--- a/Source/bindings/core/v8/SerializedScriptValueFactory.h
+++ b/Source/bindings/core/v8/SerializedScriptValueFactory.h
@@ -8,12 +8,14 @@
 #include "bindings/core/v8/ScriptValueSerializer.h"
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "core/CoreExport.h"
+#include "wtf/FastAllocBase.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
 class CORE_EXPORT SerializedScriptValueFactory {
     WTF_MAKE_NONCOPYABLE(SerializedScriptValueFactory);
+    WTF_MAKE_FAST_ALLOCATED(SerializedScriptValueFactory);
 public:
     SerializedScriptValueFactory() { }