Merge "Add back in mBufferId to GraphicBuffer ABI." into rvc-dev-plus-aosp am: 764870d336 am: d3f29a6590

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/12328560

Change-Id: I6db32035b84a73b1ab3b795553d7b8a0981e8abe
diff --git a/libs/ui/include/ui/GraphicBuffer.h b/libs/ui/include/ui/GraphicBuffer.h
index 013505a..57be686 100644
--- a/libs/ui/include/ui/GraphicBuffer.h
+++ b/libs/ui/include/ui/GraphicBuffer.h
@@ -260,6 +260,9 @@
 
     uint64_t mId;
 
+    // Unused, but removing this may break GSI.
+    int32_t mBufferId = -1;
+
     // Stores the generation number of this buffer. If this number does not
     // match the BufferQueue's internal generation number (set through
     // IGBP::setGenerationNumber), attempts to attach the buffer will fail.