test-hwc2: set layer composition type

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: I9e71d0c01daa70f28031dd8310f2a40d7162a68e
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp b/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp
new file mode 100644
index 0000000..09fb921
--- /dev/null
+++ b/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <sstream>
+
+#include "Hwc2TestLayer.h"
+
+Hwc2TestLayer::Hwc2TestLayer(Hwc2TestCoverage coverage)
+    : mComposition(coverage) { }
+
+std::string Hwc2TestLayer::dump() const
+{
+    std::stringstream dmp;
+
+    dmp << "layer: \n";
+    dmp << mComposition.dump();
+
+    return dmp.str();
+}
+
+void Hwc2TestLayer::reset()
+{
+    mComposition.reset();
+}
+
+hwc2_composition_t Hwc2TestLayer::getComposition() const
+{
+    return mComposition.get();
+}
+
+bool Hwc2TestLayer::advanceComposition()
+{
+    return mComposition.advance();
+}