Hide heap methods where possible.

src/factory.h

Index: src/factory.h
diff --git a/src/factory.h b/src/factory.h
index f29aac4aa8fee8dd43d48712bf562040e44f0f6a..f0a4d1e5add1e5a0cf2a537becdafc4883e15dda 100644
--- a/src/factory.h
+++ b/src/factory.h
@@ -669,6 +669,8 @@ class Factory V8_FINAL {
                                         MaybeHandle<Object> maybe_prototype,
                                         PretenureFlag pretenure = TENURED);
 
+  inline Handle<Code> NewCodeHelper(int object_size, bool immovable);

[Michael Starzinger, 2014/04/29 13:15:09]

nit: Can we call this "NewCodeRaw", add a comment that says that the object is
not initialized and maybe even move it up a few lines to right below the two
New<> declarations that also return uninitialized objects?

[Yang, 2014/04/29 13:55:13]

Done.

+
   // Create a new map cache.
   Handle<MapCache> NewMapCache(int at_least_space_for);