Merge "Call SidecarCallback on main thread." into main

import android.app.ActivityThread;

import android.hardware.devicestate.DeviceState;

import android.hardware.devicestate.DeviceStateManager;

import android.os.Handler;

import android.os.IBinder;

import android.os.Looper;

import androidx.annotation.NonNull;

import androidx.window.extensions.layout.FoldingFeature;

    private final DeviceStateManager mDeviceStateManager;

    private final DeviceStateManager.DeviceStateCallback mDeviceStateCallback =

            new DeviceStateCallback();

    private final Handler mMainThread;

    public SidecarExtensionsImpl(WindowLayoutComponent windowLayoutComponent,

            DeviceStateManager deviceStateManager) {

        mWindowLayoutComponent = Objects.requireNonNull(windowLayoutComponent);

        mDeviceStateManager = Objects.requireNonNull(deviceStateManager);

        mMainThread = new Handler(Looper.getMainLooper());

    }

    @Override

            }

            final SidecarWindowLayoutInfo sidecarWindowLayoutInfo =

                    SidecarExtensionsImpl.computeSidecarWindowLayoutInfo(windowLayoutInfo);

            mSidecarCallback.onWindowLayoutChanged(mWindowToken, sidecarWindowLayoutInfo);

            mMainThread.post(() -> mSidecarCallback

                    .onWindowLayoutChanged(mWindowToken, sidecarWindowLayoutInfo));

        }

    }

            final SidecarDeviceState deviceState = new SidecarDeviceState();

            deviceState.posture = posture;

            mSidecarCallback.onDeviceStateChanged(deviceState);

            mMainThread.post(() -> mSidecarCallback.onDeviceStateChanged(deviceState));

        }

    }

}