tremplin: fix vm_tools go module import path

Go modules require a domain as prefix for import paths,
so we fix it before enabling modules mode.

BUG=b:187795288
TEST=Local builds in modules + GOPATH mode; CQ.

Cq-Depend: chromium:5250608, chromium:5253267, chromium:5253153
Change-Id: I8d6c95cb67615816b8f8ed1158078af629e712be
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/tremplin/+/5250234
Reviewed-by: David Munro <davidmunro@google.com>
Tested-by: Adrian Ratiu <adrian.ratiu@collabora.corp-partner.google.com>
Reviewed-by: Junichi Uekawa <uekawa@chromium.org>
Commit-Queue: Adrian Ratiu <adrian.ratiu@collabora.corp-partner.google.com>
diff --git a/src/chromiumos/tremplin/audit.go b/src/chromiumos/tremplin/audit.go
index 03f4be1..9d9eec8 100644
--- a/src/chromiumos/tremplin/audit.go
+++ b/src/chromiumos/tremplin/audit.go
@@ -13,7 +13,7 @@
 	"time"
 
 	"chromiumos/tremplin/sock_diag"
-	pb "chromiumos/vm_tools/tremplin_proto"
+	pb "go.chromium.org/chromiumos/vm_tools/tremplin_proto"
 
 	"github.com/elastic/go-libaudit"
 	"github.com/elastic/go-libaudit/auparse"
diff --git a/src/chromiumos/tremplin/features.go b/src/chromiumos/tremplin/features.go
index 5d96fce..d35feb9 100644
--- a/src/chromiumos/tremplin/features.go
+++ b/src/chromiumos/tremplin/features.go
@@ -4,7 +4,7 @@
 package main
 
 import (
-	pb "chromiumos/vm_tools/vm_rpc"
+	pb "go.chromium.org/chromiumos/vm_tools/vm_rpc"
 	"log"
 	"sort"
 	"strings"
diff --git a/src/chromiumos/tremplin/features_test.go b/src/chromiumos/tremplin/features_test.go
index aeb20a6..c8e46c6 100644
--- a/src/chromiumos/tremplin/features_test.go
+++ b/src/chromiumos/tremplin/features_test.go
@@ -5,7 +5,7 @@
 package main
 
 import (
-	pb "chromiumos/vm_tools/vm_rpc"
+	pb "go.chromium.org/chromiumos/vm_tools/vm_rpc"
 	"flag"
 	"testing"
 )
diff --git a/src/chromiumos/tremplin/lxd_helper.go b/src/chromiumos/tremplin/lxd_helper.go
index dbea3c2..da1a3dc 100644
--- a/src/chromiumos/tremplin/lxd_helper.go
+++ b/src/chromiumos/tremplin/lxd_helper.go
@@ -16,7 +16,7 @@
 	"syscall"
 	"time"
 
-	pb "chromiumos/vm_tools/vm_crash"
+	pb "go.chromium.org/chromiumos/vm_tools/vm_crash"
 
 	lxd "github.com/lxc/lxd/client"
 	"google.golang.org/grpc"
diff --git a/src/chromiumos/tremplin/main.go b/src/chromiumos/tremplin/main.go
index d147c6f..8f25d71 100644
--- a/src/chromiumos/tremplin/main.go
+++ b/src/chromiumos/tremplin/main.go
@@ -18,7 +18,7 @@
 	"syscall"
 	"time"
 
-	pb "chromiumos/vm_tools/tremplin_proto"
+	pb "go.chromium.org/chromiumos/vm_tools/tremplin_proto"
 
 	"github.com/mdlayher/vsock"
 	"google.golang.org/grpc"
diff --git a/src/chromiumos/tremplin/tremplin.go b/src/chromiumos/tremplin/tremplin.go
index 3e259c1..c076a5b 100644
--- a/src/chromiumos/tremplin/tremplin.go
+++ b/src/chromiumos/tremplin/tremplin.go
@@ -26,7 +26,7 @@
 	"strings"
 	"time"
 
-	pb "chromiumos/vm_tools/tremplin_proto"
+	pb "go.chromium.org/chromiumos/vm_tools/tremplin_proto"
 
 	"github.com/elastic/go-libaudit"
 	lxd "github.com/lxc/lxd/client"
diff --git a/src/chromiumos/tremplin/upgrade_container.go b/src/chromiumos/tremplin/upgrade_container.go
index fd621fd..aab2309 100644
--- a/src/chromiumos/tremplin/upgrade_container.go
+++ b/src/chromiumos/tremplin/upgrade_container.go
@@ -5,7 +5,7 @@
 package main
 
 import (
-	pb "chromiumos/vm_tools/tremplin_proto"
+	pb "go.chromium.org/chromiumos/vm_tools/tremplin_proto"
 	"context"
 	"fmt"
 	"log"
diff --git a/src/chromiumos/tremplin/upgrade_container_test.go b/src/chromiumos/tremplin/upgrade_container_test.go
index 95d5e34..5717caf 100644
--- a/src/chromiumos/tremplin/upgrade_container_test.go
+++ b/src/chromiumos/tremplin/upgrade_container_test.go
@@ -5,7 +5,7 @@
 package main
 
 import (
-	pb "chromiumos/vm_tools/tremplin_proto"
+	pb "go.chromium.org/chromiumos/vm_tools/tremplin_proto"
 	"context"
 	"errors"
 	"fmt"
diff --git a/src/chromiumos/tremplin/version.go b/src/chromiumos/tremplin/version.go
index 00c3456..d45dda5 100644
--- a/src/chromiumos/tremplin/version.go
+++ b/src/chromiumos/tremplin/version.go
@@ -15,7 +15,7 @@
 	"strconv"
 	"strings"
 
-	pb "chromiumos/vm_tools/tremplin_proto"
+	pb "go.chromium.org/chromiumos/vm_tools/tremplin_proto"
 
 	lxd "github.com/lxc/lxd/client"
 )