Compress sources of JS libraries in addition to the snapshot.

src/mksnapshot.cc

Index: src/mksnapshot.cc
diff --git a/src/mksnapshot.cc b/src/mksnapshot.cc
index dd491166bd470b65eee30c8c8d562dffd9f8642f..4669086bfd08d6558f9b7572d7fcb4d8de24eb3b 100644
--- a/src/mksnapshot.cc
+++ b/src/mksnapshot.cc
@@ -35,6 +35,7 @@
 #include "v8.h"
 
 #include "bootstrapper.h"
+#include "bz2-decompress.h"
 #include "natives.h"
 #include "platform.h"
 #include "serialize.h"
@@ -136,6 +137,7 @@ class PartialSnapshotSink : public i::SnapshotByteSink {
     return true;
   }
   int raw_size() { return raw_size_; }
+
  private:
   i::List<char> data_;
   int raw_size_;
@@ -281,6 +283,14 @@ int main(int argc, char** argv) {
     i::FlagList::PrintHelp();
     return !i::FLAG_help;
   }
+#ifdef COMPRESS_STARTUP_DATA_BZ2
+  BZip2Decompressor natives_decompressor;
+  int bz2_result = natives_decompressor.DecompressStartupData();
+  if (bz2_result != BZ_OK) {
+    fprintf(stderr, "bzip error code: %d\n", bz2_result);
+    exit(1);
+  }
+#endif
   i::Serializer::Enable();
   Persistent<Context> context = v8::Context::New();
   ASSERT(!context.IsEmpty());