android/base/StringView.h: Another C++ helper class.

Change-Id: I744ad9de0c088238655c786c75261baf9c9c9deb
diff --git a/Makefile.common b/Makefile.common
index 0d0e827..3c3fcb3 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -119,6 +119,7 @@
 	android/sockets.c \
 	android/sync-utils.c \
 	android/base/Log.cpp \
+	android/base/StringView.cpp \
 	android/utils/assert.c \
 	android/utils/bufprint.c \
 	android/utils/debug.c \