commit c872ecd51e5ac9ee3de73f7594bc7e0b99fac344
author Egor Pasko <pasko@chromium.org> Tue Mar 05 11:43:57 2019
committer Commit Bot <commit-bot@chromium.org> Tue Mar 05 11:43:57 2019
tree f0466cea3197cecdc4559849997a773f0f91133f
parent d1d7d763f8d99dee080c252688b1a31b06855efb

crashpad_stackwalker: no error when crash not found

On webview bots either crashpad is not set up for a webview app (likely,
I did not confirm) or the package name for the app is not detected
properly. As a result the path to the file does not exist on the device:
/data/data/<PACKAGE_NAME>/cache/Crashpad/pending/

Make crashpad_stackwalker return with an error in this case instead of
throwing. The caller in android_platform_backend.py will ignore the exit
code, so this change effectively only removes printing of the stack
trace in this situation. A confusing stack trace nevertheless.

Bug: 937796
Change-Id: Iea084fa466556d26e6d004313f89a62a8026ad40
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1499557
Reviewed-by: Juan Antonio Navarro Pérez <perezju@chromium.org>
Commit-Queue: Egor Pasko <pasko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#637655}