Add root_path_android.cc to webrtc/test/Android.mk.

Fixes the broken android-platform build (build that uses .mk files).

TBR=andrew@webrtc.org,henrike@webrtc.org
BUG=

Review URL: https://webrtc-codereview.appspot.com/1777004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4314 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/test/Android.mk b/test/Android.mk
index 20af6f9..73dceea 100644
--- a/test/Android.mk
+++ b/test/Android.mk
@@ -17,6 +17,7 @@
 LOCAL_MODULE_TAGS := optional
 LOCAL_CPP_EXTENSION := .cc
 LOCAL_SRC_FILES:= \
+    testsupport/android/root_path_android.cc \
     testsupport/fileutils.cc \
     testsupport/perf_test.cc
 
@@ -36,4 +37,3 @@
 include external/stlport/libstlport.mk
 endif
 include $(BUILD_STATIC_LIBRARY)
-