Simplify ChangeCipherSpec code in runner.

Not sure why it was expanded out like that.

Change-Id: I6899dbd23130ed7196c45c2784330b2a4fe9bdba
Reviewed-on: https://boringssl-review.googlesource.com/17666
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>

ssl/test/runner/conn.go

diff --git a/ssl/test/runner/conn.go b/ssl/test/runner/conn.go
index 61fc9d3..9e72084 100644
--- a/ssl/test/runner/conn.go
+++ b/ssl/test/runner/conn.go
@@ -1141,12 +1141,7 @@
 	if typ == recordTypeChangeCipherSpec {
 		err = c.out.changeCipherSpec(c.config)
 		if err != nil {
-			// Cannot call sendAlert directly,
-			// because we already hold c.out.Mutex.
-			c.tmp[0] = alertLevelError
-			c.tmp[1] = byte(err.(alert))
-			c.writeRecord(recordTypeAlert, c.tmp[0:2])
-			return n, c.out.setErrorLocked(&net.OpError{Op: "local error", Err: err})
+			return n, c.sendAlertLocked(alertLevelError, err.(alert))
 		}
 	}
 	return

ssl/test/runner/dtls.go

diff --git a/ssl/test/runner/dtls.go b/ssl/test/runner/dtls.go
index d46b247..87b9975 100644
--- a/ssl/test/runner/dtls.go
+++ b/ssl/test/runner/dtls.go
@@ -159,12 +159,7 @@
 		if typ == recordTypeChangeCipherSpec {
 			err = c.out.changeCipherSpec(c.config)
 			if err != nil {
-				// Cannot call sendAlert directly,
-				// because we already hold c.out.Mutex.
-				c.tmp[0] = alertLevelError
-				c.tmp[1] = byte(err.(alert))
-				c.writeRecord(recordTypeAlert, c.tmp[0:2])
-				return n, c.out.setErrorLocked(&net.OpError{Op: "local error", Err: err})
+				return n, c.sendAlertLocked(alertLevelError, err.(alert))
 			}
 		}
 		return