[snapshot] pass arguments as pointers, not references.

src/snapshot/code-serializer.h

 // Copyright 2016 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_SNAPSHOT_CODE_SERIALIZER_H_
 #define V8_SNAPSHOT_CODE_SERIALIZER_H_
 
 #include "src/parsing/preparse-data.h"
 #include "src/snapshot/serializer.h"
 
@@ skipping 42 matching lines @@
 
 // Wrapper around ScriptData to provide code-serializer-specific functionality.
 class SerializedCodeData : public SerializedData {
  public:
   // Used when consuming.
   static SerializedCodeData* FromCachedData(Isolate* isolate,
                                             ScriptData* cached_data,
                                             String* source);
 
   // Used when producing.
-  SerializedCodeData(const List<byte>& payload, const CodeSerializer& cs);
+  SerializedCodeData(const List<byte>* payload, const CodeSerializer* cs);
 
   // Return ScriptData object and relinquish ownership over it to the caller.
   ScriptData* GetScriptData();
 
   Vector<const Reservation> Reservations() const;
   Vector<const byte> Payload() const;
 
   Vector<const uint32_t> CodeStubKeys() const;
 
  private:
@@ skipping 36 matching lines @@
   static const int kPayloadLengthOffset = kNumCodeStubKeysOffset + kInt32Size;
   static const int kChecksum1Offset = kPayloadLengthOffset + kInt32Size;
   static const int kChecksum2Offset = kChecksum1Offset + kInt32Size;
   static const int kHeaderSize = kChecksum2Offset + kInt32Size;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_SNAPSHOT_CODE_SERIALIZER_H_