Adding allocator annotations to blink classes and structs.

Source/bindings/core/v8/RetainedObjectInfo.h

Index: Source/bindings/core/v8/RetainedObjectInfo.h
diff --git a/Source/bindings/core/v8/RetainedObjectInfo.h b/Source/bindings/core/v8/RetainedObjectInfo.h
index e4bcaeb56cf71f0114ec61c24bdaa0870a1dbb4c..76f914204f18c9ea136031435609e0cf66838274 100644
--- a/Source/bindings/core/v8/RetainedObjectInfo.h
+++ b/Source/bindings/core/v8/RetainedObjectInfo.h
@@ -31,11 +31,13 @@
 #ifndef RetainedObjectInfo_h
 #define RetainedObjectInfo_h
 
+#include "wtf/FastAllocBase.h"
 #include <v8-profiler.h>
 
 namespace blink {
 
 class RetainedObjectInfo : public v8::RetainedObjectInfo {
+    WTF_MAKE_FAST_ALLOCATED(RetainedObjectInfo);
 public:
     virtual intptr_t GetEquivalenceClass() = 0;
 };