Rename kMaxFrameRenderingIdleTime to kMaxActiveIdleTime and adjust it to the currently maximum valu…

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

Index: src/heap/gc-idle-time-handler.h
diff --git a/src/heap/gc-idle-time-handler.h b/src/heap/gc-idle-time-handler.h
index 3d2e304e623b62709053d5a80dc42943667132a2..6a39b78aaa2fcc24fd5210236f177bf0f9fffc14 100644
--- a/src/heap/gc-idle-time-handler.h
+++ b/src/heap/gc-idle-time-handler.h
@@ -122,8 +122,9 @@ class GCIdleTimeHandler {
   // Number of scavenges that will trigger start of new idle round.
   static const int kIdleScavengeThreshold;
 
-  // That is the maximum idle time we will have during frame rendering.
-  static const size_t kMaxFrameRenderingIdleTime = 16;
+  // This is the maximum scheduled idle time. Note that it can be more than
+  // 16 ms when there is currently no rendering going on.
+  static const size_t kMaxScheduledIdleTime = 50;
 
   // If we haven't recorded any scavenger events yet, we use a conservative
   // lower bound for the scavenger speed.