Instrumented libraries: update the libnspr4 build script.

There has been a security update in Precise which changed the paths somewhat.

BUG=313751
TBR=glider@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/600793002

Cr-Original-Commit-Position: refs/heads/master@{#296395}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 91e9dd404b29bcbb847b98530e83f3c40720b890
1 file changed