test-hwc2: set layer transform

Test: Add "#define HAVE_NO_SURFACE_FLINGER" to
          frameworks/native/libs/gui/BufferQueueCore.cpp.
      Recompile and flash.
      Run "mm" in frameworks/native/services/surfaceflinger/tests/hwc2.
      Push test-hwc2 to device.
      Run "adb root && adb shell stop".
      Run test case. Ex: "./test-hwc2"

Change-Id: I55e318cbddf957d1728435488c6283f8ce77a3d6
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp b/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp
index 647f0ff..5445a77 100644
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp
+++ b/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp
@@ -22,7 +22,8 @@
     : mBlendMode(coverage),
       mComposition(coverage),
       mDataspace(coverage),
-      mPlaneAlpha(coverage) { }
+      mPlaneAlpha(coverage),
+      mTransform(coverage) { }
 
 std::string Hwc2TestLayer::dump() const
 {
@@ -64,6 +65,11 @@
     return mPlaneAlpha.get();
 }
 
+hwc_transform_t Hwc2TestLayer::getTransform() const
+{
+    return mTransform.get();
+}
+
 bool Hwc2TestLayer::advanceBlendMode()
 {
     return mBlendMode.advance();
@@ -83,3 +89,8 @@
 {
     return mPlaneAlpha.advance();
 }
+
+bool Hwc2TestLayer::advanceTransform()
+{
+    return mTransform.advance();
+}