Adding allocator annotations to blink classes and structs.

Source/bindings/core/v8/V8PerContextData.h

Index: Source/bindings/core/v8/V8PerContextData.h
diff --git a/Source/bindings/core/v8/V8PerContextData.h b/Source/bindings/core/v8/V8PerContextData.h
index 9203071e0606640557e2190857dba74d3428e2a5..90491109f054ff2b76e78059002c02c6ccc1a70d 100644
--- a/Source/bindings/core/v8/V8PerContextData.h
+++ b/Source/bindings/core/v8/V8PerContextData.h
@@ -38,6 +38,7 @@
 #include "core/CoreExport.h"
 #include "gin/public/context_holder.h"
 #include "gin/public/gin_embedders.h"
+#include "wtf/Allocator.h"
 #include "wtf/HashMap.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
@@ -59,6 +60,8 @@ enum V8ContextEmbedderDataField {
 };
 
 class CORE_EXPORT V8PerContextData final {
+    WTF_MAKE_FAST_ALLOCATED(V8PerContextData);
+    WTF_MAKE_NONCOPYABLE(V8PerContextData);
 public:
     static PassOwnPtr<V8PerContextData> create(v8::Local<v8::Context>);