Merge "Don\'t crash the system when detecting a transient wrong state am:...

import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID;

import static android.app.ActivityManager.StackId.HOME_STACK_ID;

import static android.app.ActivityManager.StackId.PINNED_STACK_ID;

import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;

import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;

import static com.android.server.am.ActivityStack.STACK_INVISIBLE;

import android.annotation.Nullable;

import android.app.ActivityManager.StackId;

import android.content.Context;

import android.os.SystemClock;

import android.util.Slog;

import com.android.internal.logging.MetricsLogger;

import com.android.internal.logging.MetricsProto.MetricsEvent;

 * Handles logging into Tron.

 */

class ActivityMetricsLogger {

    private static final String TAG = TAG_WITH_CLASS_NAME ? "ActivityMetricsLogger" : TAG_AM;

    // Window modes we are interested in logging. If we ever introduce a new type, we need to add

    // a value here and increase the {@link #TRON_WINDOW_STATE_VARZ_STRINGS} array.

    private static final int WINDOW_STATE_STANDARD = 0;

                || stack.mStackId == FULLSCREEN_WORKSPACE_STACK_ID) {

            mWindowState = WINDOW_STATE_STANDARD;

        } else if (stack.mStackId == DOCKED_STACK_ID) {

            throw new IllegalStateException("Docked stack shouldn't be the focused stack, "

                    + "because it reported not being visible.");

            Slog.wtf(TAG, "Docked stack shouldn't be the focused stack, because it reported not"

                    + " being visible.");

            mWindowState = WINDOW_STATE_INVALID;

        } else if (stack.mStackId == FREEFORM_WORKSPACE_STACK_ID) {

            mWindowState = WINDOW_STATE_FREEFORM;

        } else if (StackId.isStaticStack(stack.mStackId)) {