First tests for GCIdleTimeHandler.

src/heap/gc-idle-time-handler.cc

Index: src/heap/gc-idle-time-handler.cc
diff --git a/src/heap/gc-idle-time-handler.cc b/src/heap/gc-idle-time-handler.cc
index e5ed823ce3ced1b1e724a938c71018be326d7c45..816178231e9a902f495b1aa3a931ea636bdda6ba 100644
--- a/src/heap/gc-idle-time-handler.cc
+++ b/src/heap/gc-idle-time-handler.cc
@@ -10,6 +10,7 @@ namespace v8 {
 namespace internal {
 
 const double GCIdleTimeHandler::kConservativeTimeRatio = 0.9;
+const size_t GCIdleTimeHandler::kMaxMarkCompactTimeInMs = 1000000;
 
 
 size_t GCIdleTimeHandler::EstimateMarkingStepSize(
@@ -44,8 +45,7 @@ size_t GCIdleTimeHandler::EstimateMarkCompactTime(
 
 
 GCIdleTimeAction GCIdleTimeHandler::Compute(size_t idle_time_in_ms,
-                                            HeapState heap_state,
-                                            GCTracer* gc_tracer) {
+                                            HeapState heap_state) {
   if (IsIdleRoundFinished()) {
     if (EnoughGarbageSinceLastIdleRound() || heap_state.contexts_disposed > 0) {
       StartIdleRound();
@@ -54,10 +54,9 @@ GCIdleTimeAction GCIdleTimeHandler::Compute(size_t idle_time_in_ms,
     }
   }
   if (heap_state.incremental_marking_stopped) {
-    size_t speed =
-        static_cast<size_t>(gc_tracer->MarkCompactSpeedInBytesPerMillisecond());
-    if (idle_time_in_ms >=
-        EstimateMarkCompactTime(heap_state.size_of_objects, speed)) {
+    if (idle_time_in_ms >= EstimateMarkCompactTime(
+                               heap_state.size_of_objects,
+                               heap_state.mark_compact_speed_in_bytes_per_ms)) {
       // If there are no more than two GCs left in this idle round and we are
       // allowed to do a full GC, then make those GCs full in order to compact
       // the code space.
@@ -80,9 +79,8 @@ GCIdleTimeAction GCIdleTimeHandler::Compute(size_t idle_time_in_ms,
     return GCIdleTimeAction::FinalizeSweeping();
   }
 
-  intptr_t speed = gc_tracer->IncrementalMarkingSpeedInBytesPerMillisecond();
-  size_t step_size =
-      static_cast<size_t>(EstimateMarkingStepSize(idle_time_in_ms, speed));
+  size_t step_size = EstimateMarkingStepSize(
+      idle_time_in_ms, heap_state.incremental_marking_speed_in_bytes_per_ms);
   return GCIdleTimeAction::IncrementalMarking(step_size);
 }
 }