Prepare chromium-cpp.appspot.com for c++11 library stuff.
Prepare chromium-cpp.appspot.com for c++11 library stuff.

BUG=554287
R=danakj@chromium.org

Review URL: https://codereview.chromium.org/1436693002 .

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#358972}

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