Sync metrics protos with google3

Bug: internal b/115749837
Change-Id: I4f0b21097081415956f1b386f68916b50fd8de82
Reviewed-on: https://chromium-review.googlesource.com/1235289
Commit-Queue: Yi-Chun Gina Ko <yichunko@google.com>
Commit-Queue: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Steven Holte <holte@chromium.org>
Cr-Commit-Position: refs/heads/master@{#592955}

third_party/metrics_proto/README.chromium

 Name: Metrics Protos
 Short Name: metrics_proto
 URL: This is the canonical public repository
-Version: 213678807
-Date: 2018/09/19 UTC
+Version: 213863997
+Date: 2018/09/20 UTC
 License: BSD
 Security Critical: Yes
 

third_party/metrics_proto/cast_logs.proto

@@ -235,17 +235,19 @@ message CastLogsProto {
   // Next tag: 8
   message CastDeviceMutableInfo {
     // This is the last type of reboot the device encountered
-    // Next tag: 9
+    // Next tag: 11
     enum RebootType {
-      REBOOT_TYPE_UNKNOWN = 0;
+      REBOOT_TYPE_UNKNOWN = 0;  // Fail to get reboot type from system property
       REBOOT_TYPE_FORCED = 1;   // Power removed from device
       REBOOT_TYPE_API = 2;      // Requested from reboot setup api
       REBOOT_TYPE_NIGHTLY = 3;
       REBOOT_TYPE_OTA = 4;
-      REBOOT_TYPE_WATCHDOG = 5;
+      REBOOT_TYPE_WATCHDOG = 5;  // Reboot caused by a watchdog process.
       REBOOT_TYPE_PROCESS_MANAGER = 6;
       REBOOT_TYPE_CRASH_UPLOADER = 7;
       REBOOT_TYPE_FDR = 8;
+      REBOOT_TYPE_HW_WATCHDOG = 9;
+      REBOOT_TYPE_SW_OTHER = 10;
     }
     optional RebootType last_reboot_type = 1;
 

third_party/metrics_proto/system_profile.proto

@@ -129,8 +129,8 @@ message SystemProfileProto {
     // to that, device hardware class was incorrectly recorded in
     // cpu_architecture field.
     //
-    // For Chrome OS, prior to M68, this field had the value that is
-    // currently in |full_hardware_class| field. In M68+, this contains the
+    // For Chrome OS, prior to M69, this field had the value that is
+    // currently in |full_hardware_class| field. In M69+, this contains the
     // board name only. E.G. "CELES", "VEYRON_MINNIE".
 
     optional string hardware_class = 4;