Merge changes from topic "sf-tests"
* changes:
surfaceflinger: enable LayerTransactionTest in presubmit
surfaceflinger: fix traverseLayersInDisplay
surfaceflinger: add more setFinalCrop tests
surfaceflinger: add more setCrop tests
surfaceflinger: add setOverrideScalingMode tests
surfaceflinger: add more setMatrix tests
surfaceflinger: add more setLayerStack tests
surfaceflinger: add more setColor tests
surfaceflinger: add more setAlpha tests
surfaceflinger: add setTransparentRegionHint tests
surfaceflinger: add more setFlags tests
surfaceflinger: add more setRelativeLayer tests
surfaceflinger: add more setLayer tests
surfaceflinger: add more setSize tests
surfaceflinger: add more setPosition tests
surfaceflinger: run clang-format on Transaction_test.cpp