Serializer: move to a subfolder and clean up includes.

src/snapshot-source-sink.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_SNAPSHOT_SOURCE_SINK_H_
-#define V8_SNAPSHOT_SOURCE_SINK_H_
-
-#include "src/base/logging.h"
-#include "src/utils.h"
-
-namespace v8 {
-namespace internal {
-
-
-/**
- * Source to read snapshot and builtins files from.
- *
- * Note: Memory ownership remains with callee.
- */
-class SnapshotByteSource FINAL {
- public:
-  SnapshotByteSource(const char* data, int length)
-      : data_(reinterpret_cast<const byte*>(data)),
-        length_(length),
-        position_(0) {}
-
-  explicit SnapshotByteSource(Vector<const byte> payload)
-      : data_(payload.start()), length_(payload.length()), position_(0) {}
-
-  ~SnapshotByteSource() {}
-
-  bool HasMore() { return position_ < length_; }
-
-  byte Get() {
-    DCHECK(position_ < length_);
-    return data_[position_++];
-  }
-
-  void Advance(int by) { position_ += by; }
-
-  void CopyRaw(byte* to, int number_of_bytes);
-
-  inline int GetInt() {
-    // This way of decoding variable-length encoded integers does not
-    // suffer from branch mispredictions.
-    DCHECK(position_ + 3 < length_);
-    uint32_t answer = data_[position_];
-    answer |= data_[position_ + 1] << 8;
-    answer |= data_[position_ + 2] << 16;
-    answer |= data_[position_ + 3] << 24;
-    int bytes = (answer & 3) + 1;
-    Advance(bytes);
-    uint32_t mask = 0xffffffffu;
-    mask >>= 32 - (bytes << 3);
-    answer &= mask;
-    answer >>= 2;
-    return answer;
-  }
-
-  bool GetBlob(const byte** data, int* number_of_bytes);
-
-  bool AtEOF();
-
-  int position() { return position_; }
-
- private:
-  const byte* data_;
-  int length_;
-  int position_;
-
-  DISALLOW_COPY_AND_ASSIGN(SnapshotByteSource);
-};
-
-
-/**
- * Sink to write snapshot files to.
- *
- * Subclasses must implement actual storage or i/o.
- */
-class SnapshotByteSink {
- public:
-  SnapshotByteSink() {}
-  explicit SnapshotByteSink(int initial_size) : data_(initial_size) {}
-
-  ~SnapshotByteSink() {}
-
-  void Put(byte b, const char* description) { data_.Add(b); }
-
-  void PutSection(int b, const char* description) {
-    DCHECK_LE(b, kMaxUInt8);
-    Put(static_cast<byte>(b), description);
-  }
-
-  void PutInt(uintptr_t integer, const char* description);
-  void PutRaw(const byte* data, int number_of_bytes, const char* description);
-  int Position() { return data_.length(); }
-
-  const List<byte>& data() const { return data_; }
-
- private:
-  List<byte> data_;
-};
-
-}  // namespace v8::internal
-}  // namespace v8
-
-#endif  // V8_SNAPSHOT_SOURCE_SINK_H_