crash: Add crash user and groups.

These will enable us to reduce permissions of crash reporter components.

BUG=chromium:782243
TEST=Loaded onto an eve, gave permissions to crash-access, and verified access.

Cq-Depend: 1644372
Change-Id: I6f9ef74540abd60fa65329d4cc57e5cb75d0e6d3
Reviewed-on: https://chromium-review.googlesource.com/1644358
Commit-Ready: Miriam Zimmerman <mutexlox@chromium.org>
Tested-by: Miriam Zimmerman <mutexlox@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Jeffrey Kardatzke <jkardatzke@google.com>
diff --git a/profiles/base/accounts/group/crash b/profiles/base/accounts/group/crash
new file mode 100644
index 0000000..b81ca34
--- /dev/null
+++ b/profiles/base/accounts/group/crash
@@ -0,0 +1,3 @@
+group:crash
+gid:20137
+users:crash
diff --git a/profiles/base/accounts/group/crash-access b/profiles/base/accounts/group/crash-access
new file mode 100644
index 0000000..b0da209
--- /dev/null
+++ b/profiles/base/accounts/group/crash-access
@@ -0,0 +1,3 @@
+group:crash-access
+gid:419
+users:crash
diff --git a/profiles/base/accounts/user/crash b/profiles/base/accounts/user/crash
new file mode 100644
index 0000000..40724d5
--- /dev/null
+++ b/profiles/base/accounts/user/crash
@@ -0,0 +1,6 @@
+user:crash
+uid:20137
+gid:20137
+gecos:Crash reporter daemon.
+home:/dev/null
+shell:/bin/false