Adding allocator annotations to blink classes and structs.

Source/bindings/core/v8/V8GCForContextDispose.h

Index: Source/bindings/core/v8/V8GCForContextDispose.h
diff --git a/Source/bindings/core/v8/V8GCForContextDispose.h b/Source/bindings/core/v8/V8GCForContextDispose.h
index 74078ee08115ccc568ebd78507bf63019b665a4b..811230cf0eaa87283181cab37e475d2d6ff96018 100644
--- a/Source/bindings/core/v8/V8GCForContextDispose.h
+++ b/Source/bindings/core/v8/V8GCForContextDispose.h
@@ -36,6 +36,8 @@
 namespace blink {
 
 class V8GCForContextDispose {
+    WTF_MAKE_FAST_ALLOCATED(V8GCForContextDispose);
+    WTF_MAKE_NONCOPYABLE(V8GCForContextDispose);
 public:
     void notifyContextDisposed(bool isMainFrame);
     void notifyIdle();