[heap] Enfoce tighter allocation limit for large object allocations.

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 <map>
 
@@ skipping 804 matching lines @@
 
   Address* OldSpaceAllocationTopAddress() {
     return old_space_->allocation_top_address();
   }
   Address* OldSpaceAllocationLimitAddress() {
     return old_space_->allocation_limit_address();
   }
 
   // TODO(hpayer): There is still a missmatch between capacity and actual
   // committed memory size.
-  bool CanExpandOldGeneration(int size) {
+  bool CanExpandOldGeneration(int size = 0) {
     if (force_oom_) return false;
     return (CommittedOldGenerationMemory() + size) < MaxOldGenerationSize();
   }
 
   // Clear the Instanceof cache (used when a prototype changes).
   inline void ClearInstanceofCache();
 
   // FreeSpace objects have a null map after deserialization. Update the map.
   void RepairFreeListsAfterDeserialization();
 
@@ skipping 1919 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_H_