Re-land r296395: "Instrumented libraries: update the libnspr4 build script."

Re-land r296395: "Instrumented libraries: update the libnspr4 build script."

There has been a security update in gPrecise which changed the paths somewhat.
The previous version of this CL was reverted as it broke on vanilla Precise.
This version fixes that.

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

Committed: https://crrev.com/e28696420fcac7596c9262868b93f16c1231e0ea
Cr-Commit-Position: refs/heads/master@{#296466}

[earthdok, 2014-09-24 18:11:05]

The CQ bit was checked by earthdok@chromium.org

[commit-bot: I haz the power, 2014-09-24 18:11:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/602823002/1

[commit-bot: I haz the power, 2014-09-24 18:12:08]

Committed patchset #1 (id:1) as 8d01a12d944451eaa3be12b62a60a3402b28d4aa

[commit-bot: I haz the power, 2014-09-24 18:12:40]

Patchset 1 (id:??) landed as
https://crrev.com/e28696420fcac7596c9262868b93f16c1231e0ea
Cr-Commit-Position: refs/heads/master@{#296466}

[Alexander Potapenko, 2014-09-25 08:14:37]

lgtm

https://codereview.chromium.org/602823002/diff/1/third_party/instrumented_lib...
File third_party/instrumented_libraries/scripts/libnspr4.sh (right):

https://codereview.chromium.org/602823002/diff/1/third_party/instrumented_lib...
third_party/instrumented_libraries/scripts/libnspr4.sh:15: echo "libnspr4.sh:
package has unexpected directory structure. Please update this script."
I'd prefer a line wrap here.