[Sync] Move sessions files from sync_driver to sync_sessions.

components/sync_driver/glue/synced_session.h

-// Copyright 2012 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.
-
-#ifndef COMPONENTS_SYNC_DRIVER_GLUE_SYNCED_SESSION_H_
-#define COMPONENTS_SYNC_DRIVER_GLUE_SYNCED_SESSION_H_
-
-#include <map>
-#include <string>
-
-#include "base/time/time.h"
-#include "components/sessions/core/session_id.h"
-#include "components/sessions/core/session_types.h"
-#include "sync/protocol/session_specifics.pb.h"
-
-namespace sessions {
-struct SessionWindow;
-}
-
-namespace sync_driver {
-
-// Defines a synced session for use by session sync. A synced session is a
-// list of windows along with a unique session identifer (tag) and meta-data
-// about the device being synced.
-struct SyncedSession {
-  typedef std::map<SessionID::id_type, sessions::SessionWindow*>
-      SyncedWindowMap;
-
-  // The type of device.
-  // Please keep in sync with ForeignSessionHelper.java
-  enum DeviceType {
-    TYPE_UNSET = 0,
-    TYPE_WIN = 1,
-    TYPE_MACOSX = 2,
-    TYPE_LINUX = 3,
-    TYPE_CHROMEOS = 4,
-    TYPE_OTHER = 5,
-    TYPE_PHONE = 6,
-    TYPE_TABLET = 7
-  };
-
-  SyncedSession();
-  ~SyncedSession();
-
-  // Unique tag for each session.
-  std::string session_tag;
-  // User-visible name
-  std::string session_name;
-
-  // Type of device this session is from.
-  DeviceType device_type;
-
-  // Last time this session was modified remotely.
-  base::Time modified_time;
-
-  // Map of windows that make up this session. Windowws are owned by the session
-  // itself and free'd on destruction.
-  SyncedWindowMap windows;
-
-  // Converts the DeviceType enum value to a string. This is used
-  // in the NTP handler for foreign sessions for matching session
-  // types to an icon style.
-  std::string DeviceTypeAsString() const {
-    switch (device_type) {
-      case SyncedSession::TYPE_WIN:
-        return "win";
-      case SyncedSession::TYPE_MACOSX:
-        return "macosx";
-      case SyncedSession::TYPE_LINUX:
-        return "linux";
-      case SyncedSession::TYPE_CHROMEOS:
-        return "chromeos";
-      case SyncedSession::TYPE_OTHER:
-        return "other";
-      case SyncedSession::TYPE_PHONE:
-        return "phone";
-      case SyncedSession::TYPE_TABLET:
-        return "tablet";
-      default:
-        return std::string();
-    }
-  }
-
-  // Convert this object to its protocol buffer equivalent. Shallow conversion,
-  // does not create SessionTab protobufs.
-  sync_pb::SessionHeader ToSessionHeader() const;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(SyncedSession);
-};
-
-}  // namespace sync_driver
-
-#endif  // COMPONENTS_SYNC_DRIVER_GLUE_SYNCED_SESSION_H_