Separate unit and end-to-end tests from the top level makefie.

The top level makefile will build license_protocol_protos.a, which is
needed by libcdm.a. Unit and end-to-end tests are now build separately
under cdm/test.

Also, the tests use Google C++ Testing Framework, so please build the
gtest library from external/gtest and run "mm" once before building
the tests.
Or just run "mmma vendor/widevine/libwvdrmengine" (or mma in
vendor/widevine/libwvdrmengine") once.

Change-Id: Iec5a7a974e2f23651191b7325230d9ae3d6b83f2

libwvdrmengine/cdm/test/Android.mk

@@ -0,0 +1,23 @@
+# ----------------------------------------------------------------
+# Builds CDM Tests
+#
+LOCAL_PATH := $(call my-dir)
+
+test_name := cdm_engine_test
+test_src_dir := ../core/test
+include $(LOCAL_PATH)/unit-test.mk
+
+test_name := http_socket_test
+test_src_dir := ../core/test
+include $(LOCAL_PATH)/unit-test.mk
+
+test_name := license_unittest
+test_src_dir := ../core/test
+include $(LOCAL_PATH)/unit-test.mk
+
+test_name := request_license_test
+test_src_dir := .
+include $(LOCAL_PATH)/unit-test.mk
+
+test_name :=
+test_src_dir :=

libwvdrmengine/cdm/test/unit-test.mk

@@ -0,0 +1,48 @@
+# -------------------------------------------------------------------
+# Makes a unit or end to end test.
+# test_name must be passed in as the base filename(without the .cpp).
+#
+$(call assert-not-null,test_name)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := $(test_name)
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_SRC_FILES := \
+    $(test_src_dir)/$(test_name).cpp \
+    ../core/test/config_test_env.cpp \
+    ../core/test/http_socket.cpp \
+    ../core/test/license_request.cpp \
+    ../core/test/url_request.cpp
+
+LOCAL_C_INCLUDES := \
+    bionic \
+    external/gtest/include \
+    external/stlport/stlport \
+    vendor/widevine/libwvdrmengine/cdm/core/include \
+    vendor/widevine/libwvdrmengine/cdm/core/test \
+    vendor/widevine/libwvdrmengine/cdm/include
+
+LOCAL_C_INCLUDES += \
+    external/protobuf/src
+
+LOCAL_ADDITIONAL_DEPENDENCIES := $(cdm_proto_gen_headers)
+
+LOCAL_STATIC_LIBRARIES := \
+    libcdm \
+    libgtest \
+    libgtest_main \
+    libprotobuf-cpp-2.3.0-lite
+
+LOCAL_WHOLE_STATIC_LIBRARIES := \
+    license_protocol_protos
+
+LOCAL_SHARED_LIBRARIES := \
+    libstlport \
+    libchromium_net \
+    libcrypto \
+    liboemcrypto \
+    libutils
+
+include $(BUILD_EXECUTABLE)