Track how many pages trigger fallback strategies in GC

src/heap/mark-compact.h

Index: src/heap/mark-compact.h
diff --git a/src/heap/mark-compact.h b/src/heap/mark-compact.h
index ddb993f5a2f676491e732da2a1a39cae26c48b59..9e2730a205ac4328d8f6f68818abe173d4ab699c 100644
--- a/src/heap/mark-compact.h
+++ b/src/heap/mark-compact.h
@@ -589,27 +589,6 @@ class MarkCompactCollector {
         ->IsEvacuationCandidate();
   }
 
-  INLINE(void EvictEvacuationCandidate(Page* page)) {
-    if (FLAG_trace_fragmentation) {
-      PrintF("Page %p is too popular. Disabling evacuation.\n",
-             reinterpret_cast<void*>(page));
-    }
-
-    // TODO(gc) If all evacuation candidates are too popular we
-    // should stop slots recording entirely.
-    page->ClearEvacuationCandidate();
-
-    // We were not collecting slots on this page that point
-    // to other evacuation candidates thus we have to
-    // rescan the page after evacuation to discover and update all
-    // pointers to evacuated objects.
-    if (page->owner()->identity() == OLD_DATA_SPACE) {
-      evacuation_candidates_.RemoveElement(page);
-    } else {
-      page->SetFlag(Page::RESCAN_ON_EVACUATION);
-    }
-  }
-
   void RecordRelocSlot(RelocInfo* rinfo, Object* target);
   void RecordCodeEntrySlot(Address slot, Code* target);
   void RecordCodeTargetPatch(Address pc, Code* target);
@@ -694,6 +673,7 @@ class MarkCompactCollector {
   bool WillBeDeoptimized(Code* code);
   void RemoveDeadInvalidatedCode();
   void ProcessInvalidatedCode(ObjectVisitor* visitor);
+  void EvictEvacuationCandidate(Page* page);
 
   void StartSweeperThreads();