Add support for startup data (snapshot) compression.

src/snapshot-empty.cc

Index: src/snapshot-empty.cc
diff --git a/src/snapshot-empty.cc b/src/snapshot-empty.cc
index cb26eb8c528aaf1a90a8a6499a5f060d2afe80e8..48aad1c39bc0d15779ce984e0926bac0342d168e 100644
--- a/src/snapshot-empty.cc
+++ b/src/snapshot-empty.cc
@@ -35,9 +35,13 @@ namespace v8 {
 namespace internal {
 

[Søren Thygesen Gjesse, 2011/04/29 06:50:29]

How about removing decompressed_ and instead adding raw_ (or something like
that) to the input data, e.g.

const byte Snapshot::raw_data_[] = { 0 };
const byte* Snapshot::data_ = NULL;

[mnaganov (inactive), 2011/04/29 12:07:58]

Good idea. "decompressed" is a too long word.
I ended up with using "raw" for naming decompressed data -- this feels more
natural than using "raw" for compressed.

 const byte Snapshot::data_[] = { 0 };
+const byte* Snapshot::decompressed_data_ = NULL;
 const int Snapshot::size_ = 0;
+const int Snapshot::decompressed_size_ = 0;
 const byte Snapshot::context_data_[] = { 0 };
+const byte* Snapshot::context_decompressed_data_ = NULL;
 const int Snapshot::context_size_ = 0;
+const int Snapshot::context_decompressed_size_ = 0;
 
 const int Snapshot::new_space_used_ = 0;
 const int Snapshot::pointer_space_used_ = 0;