Merge "Move StringPiece to libandroidfw"

diff --cc libs/androidfw/tests/Android.mk
index 6754cd8,2f394c4..650f813
--- 1/libs/androidfw/tests/Android.mk
--- 2/libs/androidfw/tests/Android.mk
+++ b/libs/androidfw/tests/Android.mk
@@@ -31,11 -29,11 +31,12 @@@ testFiles := 
      Config_test.cpp \
      ConfigLocale_test.cpp \
      Idmap_test.cpp \
 -    Main.cpp \
 +    LoadedArsc_test.cpp \
      ResTable_test.cpp \
      Split_test.cpp \
+     StringPiece_test.cpp \
      TestHelpers.cpp \
 +    TestMain.cpp \
      Theme_test.cpp \
      TypeWrappers_test.cpp \
      ZipUtils_test.cpp