Round unclipped saveLayers

fixes: 29456451

Change-Id: I2be8b47c46936e75071ad0819a718f72b96cbd2b
diff --git a/libs/hwui/FrameBuilder.cpp b/libs/hwui/FrameBuilder.cpp
index b8a5ce6..37d9d0e7 100644
--- a/libs/hwui/FrameBuilder.cpp
+++ b/libs/hwui/FrameBuilder.cpp
@@ -946,6 +946,7 @@
 
     Rect dstRect(op.unmappedBounds);
     boundsTransform.mapRect(dstRect);
+    dstRect.roundOut();
     dstRect.doIntersect(mCanvasState.currentSnapshot()->getRenderTargetClip());
 
     if (dstRect.isEmpty()) {