[Sync] Move //sync to //components/sync.

sync/internal_api/protocol_event_buffer.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "sync/internal_api/protocol_event_buffer.h"
-
-#include <stddef.h>
-
-#include "sync/internal_api/public/events/protocol_event.h"
-
-namespace syncer {
-
-const size_t ProtocolEventBuffer::kBufferSize = 6;
-
-ProtocolEventBuffer::ProtocolEventBuffer()
-  : buffer_deleter_(&buffer_) {}
-
-ProtocolEventBuffer::~ProtocolEventBuffer() {}
-
-void ProtocolEventBuffer::RecordProtocolEvent(const ProtocolEvent& event) {
-  buffer_.push_back(event.Clone().release());
-  if (buffer_.size() > kBufferSize) {
-    ProtocolEvent* to_delete = buffer_.front();
-    buffer_.pop_front();
-    delete to_delete;
-  }
-}
-
-ScopedVector<ProtocolEvent>
-ProtocolEventBuffer::GetBufferedProtocolEvents() const {
-  ScopedVector<ProtocolEvent> ret;
-  for (std::deque<ProtocolEvent*>::const_iterator it = buffer_.begin();
-       it != buffer_.end(); ++it) {
-    ret.push_back((*it)->Clone());
-  }
-  return ret;
-}
-
-}  // namespace syncer