- Consider the growth policy even when allocating large pages.

runtime/vm/pages.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_PAGES_H_
 #define VM_PAGES_H_
 
 #include <map>
 
 #include "vm/freelist.h"
@@ skipping 117 matching lines @@
                                  int64_t start, int64_t end);
 
   void Enable() {
     is_enabled_ = true;
   }
 
  private:
   bool is_enabled_;
 
   // Heap growth control variable.
-  uword grow_heap_;
+  intptr_t grow_heap_;
 
   // If the garbage collector was not able to free more than heap_growth_ratio_
   // memory, then the heap is grown. Otherwise garbage collection is performed.
   int heap_growth_ratio_;
 
   // The desired percent of heap in-use after a garbage collection.
   // Equivalent to \frac{100-heap_growth_ratio_}{100}.
   double desired_utilization_;
 
   // Number of pages we grow.
@@ skipping 109 matching lines @@
   bool sweeping_;
 
   PageSpaceController page_space_controller_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace);
 };
 
 }  // namespace dart
 
 #endif  // VM_PAGES_H_