Don't pseudolocalize untranslatable strings.

bug: https://code.google.com/p/android/issues/detail?id=63004

(cherry picked from commit 7e1b8ff3e15b35b92978e572ccbfbc47cedce242)

Change-Id: I99ba1a915ae8fc61f70ce570b782108171d0fcaa
1 file changed