Move global pretenuring flag check to ShouldGloballyPretenure().

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index b24b0b3608344ffba6177e42df6edf3c02f217e2..269aa884e670fb5682e5eed6ab825733cfd93a67 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -1546,7 +1546,11 @@ class Heap {
   // Predicate that governs global pre-tenuring decisions based on observed
   // promotion rates of previous collections.
   inline bool ShouldGloballyPretenure() {
-    return new_space_high_promotion_mode_active_;
+    return FLAG_pretenuring && new_space_high_promotion_mode_active_;
+  }
+
+  void SetNewSpaceHighPromotionModeActive(bool mode) {

[Michael Starzinger, 2013/05/23 08:05:28]

nit: Can we add a short one-liner comment here saying that "// This is only
needed for tests to high promotion mode."

[Hannes Payer (out of office), 2013/05/23 08:54:52]

Done.

+    new_space_high_promotion_mode_active_ = mode;
   }
 
   inline PretenureFlag GetPretenureMode() {