Roll src/native_client/ 91f4487c5..f6ec3b4b5 (1 commit).
Roll src/native_client/ 91f4487c5..f6ec3b4b5 (1 commit).

https://chromium.googlesource.com/native_client/src/native_client.git/+log/91f4487c5eca..f6ec3b4b53f0

$ git log 91f4487c5..f6ec3b4b5 --date=short --no-merges --format='%ad %ae %s'
2016-02-19 mseaborn PNaCl dynamic linking: Add a "version" field to aid cross-repo changes

CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_dbg_32_ng,linux_nacl_sdk_build
TBR=mseaborn@chromium.org

Review URL: https://codereview.chromium.org/1721833002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#376807}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk