Fix compile errors on Linux x64 and Windows.

src/profile-generator.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 478 matching lines @@
         security_token_id_(TokenEnumerator::kNoSecurityToken),
         children_(1),
         retainers_(0),
         retaining_paths_(0),
         total_size_(kUnknownSize),
         non_shared_total_size_(kUnknownSize),
         painted_(kUnpainted) { }
   HeapEntry(HeapSnapshot* snapshot,
             Type type,
             const char* name,
-            int id,
+            uint64_t id,
             int self_size,
             int security_token_id)
       : snapshot_(snapshot),
         visited_(false),
         type_(type),
         name_(name),
         id_(id),
         next_auto_index_(1),
         self_size_(self_size),
         security_token_id_(security_token_id),
@@ skipping 334 matching lines @@
   HeapSnapshot* snapshot_;
 
   DISALLOW_COPY_AND_ASSIGN(HeapSnapshotGenerator);
 };
 
 } }  // namespace v8::internal
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 #endif  // V8_PROFILE_GENERATOR_H_