Add support for startup data (snapshot) compression.

src/snapshot-empty.cc

 // Copyright 2006-2008 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 17 matching lines @@
 // Used for building without snapshots.
 
 #include "v8.h"
 
 #include "snapshot.h"
 
 namespace v8 {
 namespace internal {
 
 const byte Snapshot::data_[] = { 0 };
+const byte* Snapshot::raw_data_ = NULL;
 const int Snapshot::size_ = 0;
+const int Snapshot::raw_size_ = 0;
 const byte Snapshot::context_data_[] = { 0 };
+const byte* Snapshot::context_raw_data_ = NULL;
 const int Snapshot::context_size_ = 0;
+const int Snapshot::context_raw_size_ = 0;
 
 const int Snapshot::new_space_used_ = 0;
 const int Snapshot::pointer_space_used_ = 0;
 const int Snapshot::data_space_used_ = 0;
 const int Snapshot::code_space_used_ = 0;
 const int Snapshot::map_space_used_ = 0;
 const int Snapshot::cell_space_used_ = 0;
 const int Snapshot::large_space_used_ = 0;
 
 } }  // namespace v8::internal