Merge "Revert "Flip BLAST on master"" into rvc-dev

import android.os.Trace;

import android.os.UserHandle;

import android.os.WorkSource;

import android.provider.DeviceConfig;

import android.provider.Settings;

import android.service.vr.IVrManager;

import android.service.vr.IVrStateCallbacks;

        mAnimator = new WindowAnimator(this);

        mRoot = new RootWindowContainer(this);

        mUseBLAST = true;

        mUseBLAST = DeviceConfig.getBoolean(

                    DeviceConfig.NAMESPACE_WINDOW_MANAGER_NATIVE_BOOT,

                    WM_USE_BLAST_ADAPTER_FLAG, false);

        mWindowPlacerLocked = new WindowSurfacePlacer(this);

        mTaskSnapshotController = new TaskSnapshotController(this);