Add code cache tests to libnativebridge.

Bug: 18027433
Change-Id: Ie5369c0d5bd147af412174dc0753d8a314196643
diff --git a/libnativebridge/tests/Android.mk b/libnativebridge/tests/Android.mk
index 295696e..4086de8 100644
--- a/libnativebridge/tests/Android.mk
+++ b/libnativebridge/tests/Android.mk
@@ -7,6 +7,8 @@
 
 # Build the unit tests.
 test_src_files := \
+    CodeCacheCreate_test.cpp \
+    CodeCacheExists_test.cpp \
     CompleteFlow_test.cpp \
     InvalidCharsNativeBridge_test.cpp \
     NeedsNativeBridge_test.cpp \