Don't try to show crash dialog if lock screen is showing. am: 9645b0ff

    boolean mDoingSetFocusedActivity;

    public boolean canShowErrorDialogs() {

        return mShowDialogs && !mSleeping && !mShuttingDown;

        return mShowDialogs && !mSleeping && !mShuttingDown

                && mLockScreenShown != LOCK_SCREEN_SHOWN;

    }

    private static final class PriorityState {

import com.android.internal.os.ProcessCpuTracker;

import com.android.server.Watchdog;

import android.app.Activity;

import android.app.ActivityManager;

import android.app.ActivityOptions;

import android.app.ActivityThread;

import android.content.Context;

import android.content.Intent;

import android.content.pm.ApplicationInfo;

import android.content.pm.IPackageDataObserver;

import android.content.pm.PackageManager;

import android.os.Binder;

import android.os.Bundle;

import android.os.Message;

import android.os.Process;

import android.os.RemoteException;

import java.util.Collections;

import java.util.HashMap;

import java.util.Set;

import java.util.concurrent.Semaphore;

import static com.android.server.Watchdog.NATIVE_STACKS_OF_INTEREST;

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

                return;

            }

            Message msg = Message.obtain();

            final Message msg = Message.obtain();

            msg.what = ActivityManagerService.SHOW_ERROR_UI_MSG;

            task = data.task;