hg: lanai/lanai: 8231175 : Fix J2DDemo sanity breakage caused due to initial commit of 8230958

[ajit.ghaisas at oracle.com]

Changeset: 7acbc7a0b1cb
Author:    aghaisas
Date:      2019-09-18 14:50 +0530
URL:       https://hg.openjdk.java.net/lanai/lanai/rev/7acbc7a0b1cb

8231175 : Fix J2DDemo sanity breakage caused due to initial commit of 8230958

! src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/MTLContext.m
! src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/MTLPaints.m
! src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/MTLRenderQueue.m