--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Mon Jan 16 11:21:21 2012 +0100
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Mon Jan 16 22:10:05 2012 +0100
@@ -177,7 +177,6 @@
   double _cur_collection_start_sec;
   size_t _cur_collection_pause_used_at_start_bytes;
   size_t _cur_collection_pause_used_regions_at_start;
-  size_t _prev_collection_pause_used_at_end_bytes;
   double _cur_collection_par_time_ms;
   double _cur_satb_drain_time_ms;
   double _cur_clear_ct_time_ms;
@@ -800,6 +799,8 @@
 
   GenRemSet::Name  rem_set_name()     { return GenRemSet::CardTable; }
 
+  bool need_to_start_conc_mark(const char* source);
+
   // Update the heuristic info to record a collection pause of the given
   // start time, where the given number of bytes were used at the start.
   // This may involve changing the desired size of a collection set.