Removes the Callee parameter from FunctionCallbackInfo.

src/arguments.h

Index: src/arguments.h
diff --git a/src/arguments.h b/src/arguments.h
index d11a8cd61ee0b18659e2e66164f3c5de20675411..7ee7069ce32c1fc31bfbc8cb499ba50cbefec37f 100644
--- a/src/arguments.h
+++ b/src/arguments.h
@@ -215,12 +215,10 @@ class FunctionCallbackArguments
   static const int kReturnValueDefaultValueIndex =
       T::kReturnValueDefaultValueIndex;
   static const int kIsolateIndex = T::kIsolateIndex;
-  static const int kCalleeIndex = T::kCalleeIndex;
   static const int kContextSaveIndex = T::kContextSaveIndex;
 
   FunctionCallbackArguments(internal::Isolate* isolate,
       internal::Object* data,
-      internal::JSFunction* callee,
       internal::Object* holder,
       internal::Object** argv,
       int argc,
@@ -231,7 +229,6 @@ class FunctionCallbackArguments
           is_construct_call_(is_construct_call) {
     Object** values = begin();
     values[T::kDataIndex] = data;
-    values[T::kCalleeIndex] = callee;
     values[T::kHolderIndex] = holder;
     values[T::kContextSaveIndex] = isolate->heap()->the_hole_value();
     values[T::kIsolateIndex] = reinterpret_cast<internal::Object*>(isolate);
@@ -240,7 +237,6 @@ class FunctionCallbackArguments
     values[T::kReturnValueDefaultValueIndex] =
         isolate->heap()->the_hole_value();
     values[T::kReturnValueIndex] = isolate->heap()->the_hole_value();
-    DCHECK(values[T::kCalleeIndex]->IsJSFunction());
     DCHECK(values[T::kHolderIndex]->IsHeapObject());
     DCHECK(values[T::kIsolateIndex]->IsSmi());
   }