Update third_party/metrics_proto .

- Adds system_bundle_version field to CastAssistantLogsProto.
- Adds feature_triggered_in_session field to OmniboxEventProto.

Change-Id: I259d6ea5cacbbfe3a2da0ec18f9578d8417ef960
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2480883Reviewed-by: Mark Pearson <mpearson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#820443}

third_party/metrics_proto/README.chromium

 Name: Metrics Protos
 Short Name: metrics_proto
 URL: This is the canonical public repository
-Version: 336717828
-Date: 2020/10/12 UTC
+Version: 338697903
+Date: 2020/10/23 UTC
 License: BSD
 Security Critical: Yes
 

third_party/metrics_proto/cast_assistant_logs.proto

@@ -13,7 +13,7 @@ package metrics;
 
 // Deprecated. Use CastLogsProto instead.
 // CastAssistant specific device information.
-// Next id: 13
+// Next id: 14
 message CastAssistantLogsProto {
   // A unique id generated by the assistant client (approx. 11 bytes).
   // This is used to join the assistant client logs with speech logs.
@@ -86,4 +86,7 @@ message CastAssistantLogsProto {
   // should send this list for logging. Please see b/77491741 and
   // go/concurrent_event_ids for details.
   repeated string event_id_list = 12;
+
+  // Optional field to log the system bundle version.
+  optional string system_bundle_version = 13;
 }

third_party/metrics_proto/omnibox_event.proto

@@ -14,7 +14,7 @@ package metrics;
 import "omnibox_input_type.proto";
 
 // Stores information about an omnibox interaction.
-// Next tag: 22
+// Next tag: 23
 message OmniboxEventProto {
   // The timestamp for the event, in seconds.
   // This value comes from Chromium's TimeTicks::Now(), which is an abstract
@@ -394,4 +394,11 @@ message OmniboxEventProto {
   // Whether the omnibox input is a search query that is started
   // by clicking on a image tile.
   optional bool is_query_started_from_tile = 21;
+
+  // The set of features that triggered within the current omnibox session.
+  // Each element is a value of |OmniboxTriggeredFeatureService::Features| enum
+  // in components/omnibox/browser/omnibox_triggered_feature_service.h .
+  // See AutocompleteController::ResetSession() for more details on the
+  // definition of a session.
+  repeated int32 feature_triggered_in_session = 22;
 }