Update comments for telephony atoms.

Bug: 141631489
Bug: 142026991
Bug: 152414819
Test: make
Change-Id: I283483f2037d33225b18145c46effaed29825dbe
diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index 13e7ac1..9d0ce59 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -8996,7 +8996,7 @@
  * Each pull creates multiple atoms, one for each call. The sequence is randomized when pulled.
  *
  * Pulled from:
- *   frameworks/opt/telephony/src/java/com/android/internal/telephony/metrics/PersistPullers.java
+ *   frameworks/opt/telephony/src/java/com/android/internal/telephony/metrics/MetricsCollector.java
  */
 message VoiceCallSession {
     // Bearer (IMS or CS) when the call started.
@@ -9060,9 +9060,7 @@
     // See https://source.android.com/devices/tech/config/carrierid.
     optional int32 carrier_id = 18;
 
-    // Whether an SRVCC has been completed successfully.
-    // SRVCC (CS fallback) should be recorded in the IMS call since there will be no more SRVCC
-    // events once the call is switched to CS.
+    // Whether an SRVCC has been completed successfully for this call.
     optional bool srvcc_completed = 19;
 
     // Number of SRVCC failures.
@@ -9071,7 +9069,8 @@
     // Number of SRVCC cancellations.
     optional int64 srvcc_cancellation_count = 21;
 
-    // Whether the Real-Time Text (RTT) was ever used in the call.
+    // Whether the Real-Time Text (RTT) was ever used in the call (rather than whether RTT was
+    // enabled in the dialer's settings).
     optional bool rtt_enabled = 22;
 
     // Whether this was an emergency call.
@@ -9088,7 +9087,7 @@
  * time. The atom will be skipped if not enough data is available.
  *
  * Pulled from:
- *   frameworks/opt/telephony/src/java/com/android/internal/telephony/metrics/PersistPullers.java
+ *   frameworks/opt/telephony/src/java/com/android/internal/telephony/metrics/MetricsCollector.java
  */
 message VoiceCallRatUsage {
     // Carrier ID (https://source.android.com/devices/tech/config/carrierid).
@@ -9109,7 +9108,7 @@
  * Pulls the number of active SIM slots and SIMs/eSIM profiles.
  *
  * Pulled from:
- *   frameworks/opt/telephony/src/java/com/android/internal/telephony/metrics/NonPersistPullers.java
+ *   frameworks/opt/telephony/src/java/com/android/internal/telephony/metrics/MetricsCollector.java
  */
 message SimSlotState {
     // Number of active SIM slots (both physical and eSIM profiles) in the device.
@@ -9130,7 +9129,7 @@
  * This atom reports the capabilities of the device, rather than the network it has access to.
  *
  * Pulled from:
- *   frameworks/opt/telephony/src/java/com/android/internal/telephony/metrics/NonPersistPullers.java
+ *   frameworks/opt/telephony/src/java/com/android/internal/telephony/metrics/MetricsCollector.java
  */
 message SupportedRadioAccessFamily {
     // A bitmask of supported radio technologies.