Merge "Include windowing mode in WCT#Change.toString()" into main

import static android.app.Instrumentation.DEBUG_START_ACTIVITY;

import static android.app.TaskInfo.SELF_MOVABLE_UNSET;

import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;

import static android.app.WindowConfiguration.windowingModeToString;

import static android.window.TaskFragmentOperation.OP_TYPE_CLEAR_ADJACENT_TASK_FRAGMENTS;

import static android.window.TaskFragmentOperation.OP_TYPE_CREATE_TASK_FRAGMENT;

import static android.window.TaskFragmentOperation.OP_TYPE_DELETE_TASK_FRAGMENT;

                sb.append("sw/h:").append(mConfiguration.screenWidthDp).append("x")

                        .append(mConfiguration.screenHeightDp).append(",");

            }

            if (mWindowingMode >= WINDOWING_MODE_UNDEFINED) {

                sb.append("windowingMode:").append(windowingModeToString(mWindowingMode))

                        .append(",");

            }

            if ((mChangeMask & CHANGE_FOCUSABLE) != 0) {

                sb.append("focusable:").append(mFocusable).append(",");

            }