[Cronet] Change cr_cronet.py to use stack wrapper in third_party
[Cronet] Change cr_cronet.py to use stack wrapper in third_party

BUG=597343

Review URL: https://codereview.chromium.org/1859593002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#386104}

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