Merge the partial_snapshots branch back into bleeding_edge. For...

src/snapshot-common.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 41 matching lines @@
     Deserialize(str, len);
     DeleteArray(str);
     return true;
   } else if (size_ > 0) {
     Deserialize(data_, size_);
     return true;
   }
   return false;
 }
 
+
+Handle<Context> Snapshot::NewContextFromSnapshot() {
+  if (context_size_ == 0) {
+    return Handle<Context>();
+  }
+  Heap::ReserveSpace(new_space_used_,
+                     pointer_space_used_,
+                     data_space_used_,
+                     code_space_used_,
+                     map_space_used_,
+                     cell_space_used_,
+                     large_space_used_);
+  SnapshotByteSource source(context_data_, context_size_);
+  Deserializer deserializer(&source);
+  Object* root;
+  deserializer.DeserializePartial(&root);
+  CHECK(root->IsContext());
+  return Handle<Context>(Context::cast(root));
+}
+
 } }  // namespace v8::internal