GitLab

This interface allows interested classes, including
AwBrowserTerminator, ChromeStabilityMetricsProvider,
OutOfMemoryReporter, and DataReductionProxyPingbackClientImpl to
distinguish between child process crashes and kills on Android.
Previously, this was done by either passing a file descriptor to the
child process (AwBrowserTerminator) or by observing whether a crash
dump was successfully produced. This eliminates the need for the extra
descriptor for AwBrowserTerminator, as well as providing a more
accurate signal for classes that relied on checking for a crash dump.

Observers can use this interface in combination with observing child
process exits/disconnects. If an observer sees a child process
disconnect without having observed a crash signal for the child, it
can deduce that the child was killed.

Bug: crashpad:30
Change-Id: I6213d31f30d15b30d2a3987fe95229042371938b
Reviewed-on: https://chromium-review.googlesource.com/1026085
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553715}