Revert "Convert libwvdrmengine to soong."

This change introduced b/38487636 "Distorted video observed when
playing purchased/rented movie in Google play movies & TV app."

Before resubmitting an updated variant of the original CL, please
test playback with Play Movies and the GTS media tests. 

This reverts commit 33f9979b2b.

Change-Id: I4ec2e6fe81323e91e4b62288755c967999e81041

libwvdrmengine/test/unit/Android.mk

@@ -0,0 +1,91 @@
+LOCAL_PATH:= $(call my-dir)
+
+# -----------------------------------------------------------------------------
+# Builds libwvdrmengine_test
+#
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+  legacy_src/WVCreatePluginFactories_test.cpp \
+  legacy_src/WVCryptoFactory_test.cpp \
+  legacy_src/WVDrmFactory_test.cpp \
+
+LOCAL_C_INCLUDES := \
+  frameworks/av/include \
+  frameworks/native/include \
+  vendor/widevine/libwvdrmengine/include \
+  vendor/widevine/libwvdrmengine/mediadrm/include \
+  vendor/widevine/libwvdrmengine/oemcrypto/include \
+
+LOCAL_STATIC_LIBRARIES := \
+  libcrypto_static \
+  libgtest \
+  libgtest_main \
+
+LOCAL_SHARED_LIBRARIES := \
+  libdl \
+  liblog \
+  libutils \
+  libwvdrmengine \
+
+LOCAL_MODULE := libwvdrmengine_test
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_MODULE_OWNER := widevine
+
+LOCAL_PROPRIETARY_MODULE := true
+
+ifneq ($(TARGET_ENABLE_MEDIADRM_64), true)
+LOCAL_MODULE_TARGET_ARCH := arm x86 mips
+endif
+
+include $(BUILD_EXECUTABLE)
+
+# -----------------------------------------------------------------------------
+# Builds libwvdrmengine_hidl_test
+#
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+  WVCreatePluginFactories_test.cpp \
+  WVCryptoFactory_test.cpp \
+  WVDrmFactory_test.cpp \
+
+LOCAL_C_INCLUDES := \
+  frameworks/av/include \
+  frameworks/native/include \
+  vendor/widevine/libwvdrmengine/include_hidl \
+  vendor/widevine/libwvdrmengine/include \
+  vendor/widevine/libwvdrmengine/mediadrm/include_hidl \
+  vendor/widevine/libwvdrmengine/mediadrm/include \
+  vendor/widevine/libwvdrmengine/oemcrypto/include \
+
+LOCAL_STATIC_LIBRARIES := \
+  libcrypto_static \
+  libgtest \
+  libgtest_main \
+
+LOCAL_SHARED_LIBRARIES := \
+  android.hardware.drm@1.0 \
+  libcutils \
+  libdl \
+  libhidlbase \
+  libhidlmemory \
+  liblog \
+  libutils \
+  libwvhidl \
+
+LOCAL_MODULE := libwvdrmengine_hidl_test
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_MODULE_OWNER := widevine
+
+LOCAL_PROPRIETARY_MODULE := true
+
+ifneq ($(TARGET_ENABLE_MEDIADRM_64), true)
+LOCAL_MODULE_TARGET_ARCH := arm x86 mips
+endif
+
+include $(BUILD_EXECUTABLE)