Fix compile errors on Win64.

src/serialize.h

 // Copyright 2012 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 310 matching lines @@
   explicit Deserializer(SnapshotByteSource* source);
 
   virtual ~Deserializer();
 
   // Deserialize the snapshot into an empty heap.
   void Deserialize();
 
   // Deserialize a single object and the objects reachable from it.
   void DeserializePartial(Object** root);
 
-  void set_reservation(int space_number, uintptr_t reservation) {
+  void set_reservation(int space_number, int reservation) {
     ASSERT(space_number >= 0);
     ASSERT(space_number <= LAST_SPACE);
     reservations_[space_number] = reservation;
   }
 
  private:
   virtual void VisitPointers(Object** start, Object** end);
 
   virtual void VisitExternalReferences(Address* start, Address* end) {
     UNREACHABLE();
@@ skipping 31 matching lines @@
 
 
   // Cached current isolate.
   Isolate* isolate_;
 
   SnapshotByteSource* source_;
   // This is the address of the next object that will be allocated in each
   // space.  It is used to calculate the addresses of back-references.
   Address high_water_[LAST_SPACE + 1];
 
-  intptr_t reservations_[LAST_SPACE + 1];
+  int reservations_[LAST_SPACE + 1];
   static const intptr_t kUninitializedReservation = -1;
 
   ExternalReferenceDecoder* external_reference_decoder_;
 
   DISALLOW_COPY_AND_ASSIGN(Deserializer);
 };
 
 
 class SnapshotByteSink {
  public:
@@ skipping 258 matching lines @@
  private:
   virtual bool ShouldBeInThePartialSnapshotCache(HeapObject* o) {
     return false;
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SERIALIZE_H_