just a typo

src/heap/heap.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 
 #include "src/allocation.h"
@@ skipping 1280 matching lines @@
 
   inline void DoScavengeObject(Map* map, HeapObject** slot, HeapObject* obj) {
     scavenging_visitors_table_.GetVisitor(map)(map, slot, obj);
   }
 
   void QueueMemoryChunkForFree(MemoryChunk* chunk);
   void FreeQueuedChunks();
 
   int gc_count() const { return gc_count_; }
 
-  bool RecentIdleNotifcationHappened();
+  bool RecentIdleNotificationHappened();
 
   // Completely clear the Instanceof cache (to stop it keeping objects alive
   // around a GC).
   inline void CompletelyClearInstanceofCache();
 
   // The roots that have an index less than this are always in old space.
   static const int kOldSpaceRoots = 0x20;
 
   uint32_t HashSeed() {
     uint32_t seed = static_cast<uint32_t>(hash_seed()->value());
@@ skipping 1282 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_HEAP_H_