peter@chromium.org knollr@chromium.org Records that a message has been received from a delivery channel powered by the GCM account mappings. peter@chromium.org knollr@chromium.org Status code of the outcome of a GCM checkin request. peter@chromium.org knollr@chromium.org Network error code for a GCM checkin request that failed because of a network error. rushans@google.com peter@chromium.org Records the time for which GCM client start task has been delayed. Recorded whenever GCM client is requested to start. peter@chromium.org zea@chromium.org Result of decryption on a received GCM message, which includes unencrypted messages, successfully decrypted messages and decryption failures. peter@chromium.org zea@chromium.org Success rate of removing keying material from the GCM key store. dmurph@chromium.org pwnall@chromium.org peter@chromium.org The result of a database open attempt by the GCM store. rushans@google.com peter@chromium.org Records the time for which tasks in GCM driver were delayed. Recorded once GCM driver is ready (normally this means that GCM client is initialized). peter@chromium.org rushans@google.com Whether a received GCM message could be delivered to an app handler ({AppHandler}). Recorded for each received GCM message that didn't have encryption issues. This metric was expired between July 2021 and January 2023, and may be missing data until M111. peter@chromium.org knollr@chromium.org Status code of loading from the persistent GCM store. peter@chromium.org knollr@chromium.org Number of connection events which have not been sent to GCM. This is recorded only at the time of shutdown to capture the events which are being lost due to shutdown. Because this is recorded at shutdown, this is not guaranteed to be complete and should be treated as a best effort record. nator@chromium.org peter@chromium.org rayankans@chromium.org Reports the status of cached GCM registration. This is recorded when a new registration request is considered on the GCM client. peter@chromium.org Number of registration requests sent to Google Cloud Messaging. Recorded immediately after the request has started. peter@chromium.org platform-capabilities@chromium.org Net error code from a GCM registration attempt. Recorded when URL loading completes. peter@chromium.org Status code of the outcome of a GCM registration request. The Unknown error case was split up in M56 (merged mid-beta to M55) to separate out the Response parsing failed, Internal server error, Quota exceeded, and Device has too many registrations cases. knollr@chromium.org peter@chromium.org Result of sending web push messages. Recorded when the message has either been sent, or has been dropped because an error happened. peter@chromium.org rayankans@chromium.org Size of the GCM persistent store in kilobytes at startup. Warning: this histogram was expired from 2018-08-30 to 2021-09-20; data may be missing. zea@chromium.org Success indicates successfully updating the GCM persistent store on message update. Failure indicates a failure updating the persistence store. peter@chromium.org zea@chromium.org Status code of the outcome of a GCM unregistration request. jianli@chromium.org Indicates whether the user was signed in when GCM started up. knollr@chromium.org peter@chromium.org Device state when receiving a web push message. Indicates if the message was sent with a high priority and if the device was in idle mode. Recorded when a web push message got received.