- Added simple memory reduction behavior for IdleNotification....

src/heap.h

Index: src/heap.h
===================================================================
--- src/heap.h	(revision 2676)
+++ src/heap.h	(working copy)
@@ -280,6 +280,9 @@
     return new_space_.allocation_limit_address();
   }
 
+  // Uncommit unused semi space.
+  static bool UncommitFromSpace() { return new_space_.UncommitFromSpace(); }
+
 #ifdef ENABLE_HEAP_PROTECTION
   // Protect/unprotect the heap by marking all spaces read-only/writable.
   static void Protect();
@@ -794,6 +797,9 @@
   // Rebuild remembered set in old and map spaces.
   static void RebuildRSets();
 
+  // Commits from space if it is uncommitted.
+  static void EnsureFromSpaceIsCommitted();
+
   //
   // Support for the API.
   //