Move to Chromium's Rietveld at codereview.webrtc.org

BUG=webrtc:3884
TBR=tommi@webrtc.org

Review URL: https://codereview.webrtc.org/1135893005

Cr-Commit-Position: refs/heads/master@{#9366}
diff --git a/codereview.settings b/codereview.settings
index 5e5814e..c96f22c 100644
--- a/codereview.settings
+++ b/codereview.settings
@@ -1,5 +1,5 @@
 # This file is used by gcl to get repository specific information.
-CODE_REVIEW_SERVER: webrtc-codereview.appspot.com
+CODE_REVIEW_SERVER: codereview.webrtc.org
 CC_LIST: webrtc-reviews@webrtc.org
 VIEW_VC: https://chromium.googlesource.com/external/webrtc/+/
 TRY_ON_UPLOAD: False