De-virtualize snapshot sink.

src/serialize.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_SERIALIZE_H_
 #define V8_SERIALIZE_H_
 
 #include "src/compiler.h"
 #include "src/hashmap.h"
 #include "src/heap-profiler.h"
@@ skipping 721 matching lines @@
 class SerializedCodeData {
  public:
   // Used by when consuming.
   explicit SerializedCodeData(ScriptData* data, String* source)
       : script_data_(data), owns_script_data_(false) {
     DisallowHeapAllocation no_gc;
     CHECK(IsSane(source));
   }
 
   // Used when producing.
-  SerializedCodeData(List<byte>* payload, CodeSerializer* cs);
+  SerializedCodeData(const List<byte>& payload, CodeSerializer* cs);
 
   ~SerializedCodeData() {
     if (owns_script_data_) delete script_data_;
   }
 
   // Return ScriptData object and relinquish ownership over it to the caller.
   ScriptData* GetScriptData() {
     ScriptData* result = script_data_;
     script_data_ = NULL;
     DCHECK(owns_script_data_);
@@ skipping 76 matching lines @@
   // Following the header, we store, in sequential order
   // - code stub keys
   // - serialization payload
 
   ScriptData* script_data_;
   bool owns_script_data_;
 };
 } }  // namespace v8::internal
 
 #endif  // V8_SERIALIZE_H_