Move shim process code to package

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

linux/proc/deleted_state.go

@@ -0,0 +1,50 @@
+// +build !windows
+
+package proc
+
+import (
+	"context"
+
+	"github.com/containerd/console"
+	shimapi "github.com/containerd/containerd/linux/shim/v1"
+	"github.com/pkg/errors"
+)
+
+type deletedState struct {
+}
+
+func (s *deletedState) Pause(ctx context.Context) error {
+	return errors.Errorf("cannot pause a deleted process")
+}
+
+func (s *deletedState) Resume(ctx context.Context) error {
+	return errors.Errorf("cannot resume a deleted process")
+}
+
+func (s *deletedState) Update(context context.Context, r *shimapi.UpdateTaskRequest) error {
+	return errors.Errorf("cannot update a deleted process")
+}
+
+func (s *deletedState) Checkpoint(ctx context.Context, r *shimapi.CheckpointTaskRequest) error {
+	return errors.Errorf("cannot checkpoint a deleted process")
+}
+
+func (s *deletedState) Resize(ws console.WinSize) error {
+	return errors.Errorf("cannot resize a deleted process")
+}
+
+func (s *deletedState) Start(ctx context.Context) error {
+	return errors.Errorf("cannot start a deleted process")
+}
+
+func (s *deletedState) Delete(ctx context.Context) error {
+	return errors.Errorf("cannot delete a deleted process")
+}
+
+func (s *deletedState) Kill(ctx context.Context, sig uint32, all bool) error {
+	return errors.Errorf("cannot kill a deleted process")
+}
+
+func (s *deletedState) SetExited(status int) {
+	// no op
+}