Rename user/group arc-oemcrypto to cdm-oemcrypto

BUG=b:153111783
TEST=Rebuild for eve, cdm-oemcrypto runs

Cq-Depend: chrome-internal:3135029, chrome-internal:3135304, chromium:2267287, chromium:2267362, chromium:2267877, chrome-internal:3135030, chrome-internal:3135031, chrome-internal:3135032
Change-Id: I56add0f178d9f27e20e3e85196fb604919cb6556
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/2267364
Tested-by: Jeffrey Kardatzke <jkardatzke@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
diff --git a/profiles/base/accounts/group/arc-oemcrypto b/profiles/base/accounts/group/arc-oemcrypto
deleted file mode 100644
index ed14a67..0000000
--- a/profiles/base/accounts/group/arc-oemcrypto
+++ /dev/null
@@ -1,2 +0,0 @@
-group:arc-oemcrypto
-gid:265
diff --git a/profiles/base/accounts/group/cdm-oemcrypto b/profiles/base/accounts/group/cdm-oemcrypto
new file mode 100644
index 0000000..08816ab
--- /dev/null
+++ b/profiles/base/accounts/group/cdm-oemcrypto
@@ -0,0 +1,2 @@
+group:cdm-oemcrypto
+gid:265
diff --git a/profiles/base/accounts/user/arc-oemcrypto b/profiles/base/accounts/user/arc-oemcrypto
deleted file mode 100644
index a85b900..0000000
--- a/profiles/base/accounts/user/arc-oemcrypto
+++ /dev/null
@@ -1,6 +0,0 @@
-user:arc-oemcrypto
-uid:265
-gid:265
-gecos:arc-oemcrypto daemon
-home:/dev/null
-shell:/bin/false
diff --git a/profiles/base/accounts/user/cdm-oemcrypto b/profiles/base/accounts/user/cdm-oemcrypto
new file mode 100644
index 0000000..f0a5e00
--- /dev/null
+++ b/profiles/base/accounts/user/cdm-oemcrypto
@@ -0,0 +1,6 @@
+user:cdm-oemcrypto
+uid:265
+gid:265
+gecos:content decryption module and Widevine OEMCrypto daemon
+home:/dev/null
+shell:/bin/false