Fix the broken build

/*

 * Copyright (C) 2016 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

syntax = "proto2";

option java_package = "com.android.launcher3.userevent.nano";

option java_outer_classname = "LauncherLogProto";

package userevent;

message Target {

  enum Type {

    NONE = 0;

    ITEM = 1;

    CONTROL = 2;

    CONTAINER = 3;

  }

  optional Type type = 1;

  // For container type and item type

  // Used mainly for ContainerType.FOLDER, ItemType.*

  optional Target parent = 2;

  optional int32 page_index = 3;

  optional int32 rank = 4;

  optional int32 grid_x = 5;

  optional int32 grid_y = 6;

  // For container types only

  optional ContainerType container_type = 7;

  optional int32 cardinality = 8;

  // For control types only

  optional ControlType control_type = 9;

  // For item types only

  optional ItemType item_type = 10;

  optional int32 package_name_hash = 11;

  optional int32 component_hash = 12;      // Used for ItemType.WIDGET

  optional int32 intent_hash = 13;         // Used for ItemType.SHORTCUT

  optional int32 span_x = 14 [default = 1];// Used for ItemType.WIDGET

  optional int32 span_y = 15 [default = 1];// Used for ItemType.WIDGET

}

enum ItemType {

  APP_ICON = 0;

  SHORTCUT = 1;

  WIDGET = 2;

  FOLDER_ICON = 3;

}

enum ContainerType {

  WORKSPACE = 0;

  HOTSEAT = 1;

  FOLDER = 2;

  ALLAPPS = 3;

  WIDGETS = 4;

  OVERVIEW = 5;

  PREDICTION = 6;

  SEARCHRESULT = 7;

}

enum ControlType {

  ALL_APPS_BUTTON = 0;

  WIDGETS_BUTTON = 1;

  WALLPAPER_BUTTON = 2;

  SETTINGS_BUTTON = 3;

  REMOVE_TARGET = 4;

  UNINSTALL_TARGET = 5;

  APPINFO_TARGET = 6;

  RESIZE_HANDLE = 7;

  FAST_SCROLL_HANDLE = 8;

  // HOME, BACK, GO_TO_PLAYSTORE

}

message Action {

  enum Type {

    TOUCH = 0;

    AUTOMATED = 1;

    // SOFT_KEYBOARD, HARD_KEYBOARD, ASSIST

  }

  enum Touch {

    TAP = 0;

    LONGPRESS = 1;

    DRAGDROP = 2;

    SWIPE = 3;

    FLING = 4;

    PINCH = 5;

  }

  optional Type type = 1;

  optional Touch touch = 2;

}

//

// Context free grammar of typical user interaction:

//         Action (Touch) + Target

//         Action (Touch) + Target + Target

//

message LauncherEvent {

  required Action action = 1;

  // List of targets that touch actions can be operated on.

  optional Target src_target = 2;

  optional Target dest_target = 3;

  optional int64 action_duration_millis = 4;

  optional int64 elapsed_container_millis = 5;

  optional int64 elapsed_session_millis = 6;

}