Merge "Query to SystemProperties for BLAST Flag"

        mAnimator = new WindowAnimator(this);

        mRoot = new RootWindowContainer(this);

        mUseBLAST = DeviceConfig.getBoolean(

        mUseBLAST = SystemProperties.getBoolean(

                    String.join(".", "persist.device_config",

                    DeviceConfig.NAMESPACE_WINDOW_MANAGER_NATIVE_BOOT,

                    WM_USE_BLAST_ADAPTER_FLAG, false);

                    WM_USE_BLAST_ADAPTER_FLAG), false);

        mWindowPlacerLocked = new WindowSurfacePlacer(this);

        mTaskSnapshotController = new TaskSnapshotController(this);