Pass GC flags to incremental marker and start incremental marking with

src/heap/incremental-marking.cc

Index: src/heap/incremental-marking.cc
diff --git a/src/heap/incremental-marking.cc b/src/heap/incremental-marking.cc
index 95f522bd991fe83fadb9baa8445fd7768b736f6f..8b007be81b16ea05927e90ee2a29c87ab5b2ef4c 100644
--- a/src/heap/incremental-marking.cc
+++ b/src/heap/incremental-marking.cc
@@ -467,7 +467,7 @@ static void PatchIncrementalMarkingRecordWriteStubs(
 }
 
 
-void IncrementalMarking::Start() {
+void IncrementalMarking::Start(int flags_for_mark_compact_collector) {

[Hannes Payer (out of office), 2015/05/21 17:10:12]

mark_compact_flags

[ulan, 2015/05/21 17:12:52]

Done.

   if (FLAG_trace_incremental_marking) {
     PrintF("[IncrementalMarking] Start\n");
   }
@@ -482,7 +482,9 @@ void IncrementalMarking::Start() {
   was_activated_ = true;
 
   if (!heap_->mark_compact_collector()->sweeping_in_progress()) {
+    heap_->mark_compact_collector()->SetFlags(flags_for_mark_compact_collector);
     StartMarking();
+    heap_->mark_compact_collector()->SetFlags(Heap::kNoGCFlags);
   } else {
     if (FLAG_trace_incremental_marking) {
       PrintF("[IncrementalMarking] Start sweeping.\n");