Don't use UNKNOWN in enum

Feels like this should've been caught.

BUG=None
TEST=None

Change-Id: I87545853a86d8051769c31e4ba0ad5cc66d72f69
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2184838
Reviewed-by: Dhanya Ganesh <dhanyaganesh@chromium.org>
Reviewed-by: Mike Nichols <mikenichols@chromium.org>
Reviewed-by: David Burger <dburger@chromium.org>
Commit-Queue: Dhanya Ganesh <dhanyaganesh@chromium.org>
Tested-by: Dhanya Ganesh <dhanyaganesh@chromium.org>
diff --git a/go/chromiumos/dut_tracking.pb.go b/go/chromiumos/dut_tracking.pb.go
index 5c1c9aa..aefa945 100644
--- a/go/chromiumos/dut_tracking.pb.go
+++ b/go/chromiumos/dut_tracking.pb.go
@@ -24,7 +24,7 @@
 type MonitoringMode int32
 
 const (
-	MonitoringMode_UNKNOWN MonitoringMode = 0
+	MonitoringMode_DEFAULT_TRACKING MonitoringMode = 0
 	// Track Task and Bot count.
 	MonitoringMode_TASK_BOT_COUNT MonitoringMode = 1
 	// Maximum pending time of the tasks.
@@ -34,17 +34,17 @@
 )
 
 var MonitoringMode_name = map[int32]string{
-	0: "UNKNOWN",
+	0: "DEFAULT_TRACKING",
 	1: "TASK_BOT_COUNT",
 	2: "MAX_PEND_TIME",
 	3: "PASS_FAIL_COUNT",
 }
 
 var MonitoringMode_value = map[string]int32{
-	"UNKNOWN":         0,
-	"TASK_BOT_COUNT":  1,
-	"MAX_PEND_TIME":   2,
-	"PASS_FAIL_COUNT": 3,
+	"DEFAULT_TRACKING": 0,
+	"TASK_BOT_COUNT":   1,
+	"MAX_PEND_TIME":    2,
+	"PASS_FAIL_COUNT":  3,
 }
 
 func (x MonitoringMode) String() string {
@@ -175,27 +175,27 @@
 func init() { proto.RegisterFile("chromiumos/dut_tracking.proto", fileDescriptor_31a1fc16820a6989) }
 
 var fileDescriptor_31a1fc16820a6989 = []byte{
-	// 338 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x54, 0x91, 0xcb, 0x8e, 0xa2, 0x40,
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-	0xbf, 0xbb, 0xc5, 0x99, 0xdc, 0x00, 0x44, 0x2c, 0x8d, 0x79, 0xc6, 0x90, 0x67, 0x6a, 0x4d, 0x93,
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-	0x4d, 0x1b, 0x39, 0xcb, 0x51, 0x30, 0x9e, 0xd8, 0x18, 0xc5, 0xee, 0x07, 0x48, 0x7e, 0x83, 0xb2,
-	0x43, 0xdc, 0xae, 0x82, 0x70, 0x4b, 0x37, 0x78, 0x10, 0x99, 0x5a, 0xd7, 0x24, 0xbd, 0xed, 0x36,
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-	0xe3, 0x85, 0xc5, 0x99, 0x2a, 0x15, 0xaa, 0x95, 0x0f, 0xab, 0x05, 0xf7, 0xc2, 0xfe, 0x79, 0x02,
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-	0xbe, 0xe5, 0xcd, 0xe8, 0x70, 0xee, 0xd3, 0xd1, 0x7c, 0xe9, 0xf8, 0x2d, 0x89, 0xb4, 0xa1, 0x69,
-	0x5b, 0x8f, 0x74, 0x31, 0x71, 0xc6, 0xd4, 0x9f, 0xda, 0x93, 0x56, 0x8d, 0xfc, 0x84, 0x1f, 0x0b,
-	0xcb, 0xf3, 0xe8, 0xad, 0x35, 0xbd, 0x3f, 0x71, 0xf2, 0x70, 0xf0, 0xfc, 0x3f, 0xc1, 0x8b, 0x84,
-	0x81, 0x22, 0x31, 0x4b, 0x6b, 0x61, 0x7c, 0x2d, 0x02, 0xb3, 0x58, 0x88, 0x99, 0x60, 0x69, 0xb2,
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-	0x00, 0x00,
+	// 343 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x54, 0x91, 0x4b, 0x6b, 0xf2, 0x40,
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+	0x74, 0x91, 0x14, 0x5b, 0xdc, 0x75, 0x11, 0x6f, 0xad, 0x68, 0x54, 0x92, 0x08, 0xa5, 0x9b, 0x21,
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+	0x58, 0xfb, 0x5e, 0xb0, 0x26, 0x2b, 0xd8, 0xf1, 0x54, 0xa9, 0xaa, 0x82, 0x56, 0xb7, 0x6b, 0xc7,
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+	0x75, 0x65, 0x01, 0xd7, 0x51, 0xcd, 0x32, 0x3f, 0xc8, 0x7c, 0x30, 0xed, 0x13, 0x77, 0x64, 0x0d,
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+	0x7c, 0xbe, 0xc4, 0x70, 0xb2, 0xd1, 0x81, 0xc7, 0x46, 0x61, 0x3f, 0x94, 0x2d, 0xb9, 0x67, 0xe4,
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+	0x5a, 0xa9, 0xe2, 0xf9, 0x01, 0x00, 0x00,
 }
diff --git a/src/chromiumos/dut_tracking.proto b/src/chromiumos/dut_tracking.proto
index b08b6fb..c3d2001 100644
--- a/src/chromiumos/dut_tracking.proto
+++ b/src/chromiumos/dut_tracking.proto
@@ -12,7 +12,7 @@
 
 // Defines the modes of monitoring to execute on swarming.
 enum MonitoringMode {
-  UNKNOWN = 0;
+  DEFAULT_TRACKING = 0;
   // Track Task and Bot count.
   TASK_BOT_COUNT = 1;
   // Maximum pending time of the tasks.