Refactor MemoryAllocator to allow big normal pages

src/heap.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 207 matching lines @@
                                     ObjectSlotCallback copy_object_func);
 
 
 // The all static Heap captures the interface to the global object heap.
 // All JavaScript contexts by this process share the same object heap.
 
 class Heap : public AllStatic {
  public:
   // Configure heap size before setup. Return false if the heap has been
   // setup already.
-  static bool ConfigureHeap(int max_semispace_size,
-                            int max_old_gen_size,
-                            int max_executable_size);
+  static bool ConfigureHeap(intptr_t max_semispace_size,
+                            intptr_t max_old_gen_size,
+                            intptr_t max_executable_size);
   static bool ConfigureHeapDefault();
 
   // Initializes the global object heap. If create_heap_objects is true,
   // also creates the basic non-mutable objects.
   // Returns whether it succeeded.
   static bool Setup(bool create_heap_objects);
 
   // Destroys all memory allocated by the heap.
   static void TearDown();
 
@@ skipping 1868 matching lines @@
   // Return whether this object should be retained. If NULL is returned the
   // object has no references. Otherwise the address of the retained object
   // should be returned as in some GC situations the object has been moved.
   virtual Object* RetainAs(Object* object) = 0;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_