Updates to notification history proto

    // The uid of the package that posted the notification

    optional int32 uid = 7;

    // The user id of the package that posted the notification

    // The user id that the notification was posted to

    optional int32 user_id = 8;

    // The time at which the notification was posted

    optional int64 posted_time_ms = 9;

      optional ImageTypeEnum image_type = 1;

      optional string image_bitmap_filename = 2;

      optional int32 image_resource_id = 3;

      optional bytes image_data = 4;

      optional string image_uri = 5;

      optional string image_resource_id_package = 4;

      optional bytes image_data = 5;

      optional int32 image_data_length = 6;

      optional int32 image_data_offset = 7;

      optional string image_uri = 8;

    }

  }

  // The time the last entry was written

  optional int64 end_time_ms = 1;

  // Pool of strings to save space

  optional StringPool stringpool = 2;

  optional StringPool string_pool = 1;

  // Versioning fields

  optional int32 major_version = 3;

  optional int32 minor_version = 4;

  optional int32 major_version = 2;

  // List of historical notifications

  repeated Notification notification = 5;

  repeated Notification notification = 3;

}