3 files changed, 42 insertions, 13 deletions
diff --git a/vendor/golang.org/x/net/trace/trace.go b/vendor/golang.org/x/net/trace/trace.go
index 64f56a373..3d9b64611 100644
--- a/vendor/golang.org/x/net/trace/trace.go
+++ b/vendor/golang.org/x/net/trace/trace.go
@@ -77,7 +77,6 @@ import (
 	"sync/atomic"
 	"time"
 
-	"golang.org/x/net/context"
 	"golang.org/x/net/internal/timeseries"
 )
 
@@ -271,18 +270,6 @@ type contextKeyT string
 
 var contextKey = contextKeyT("golang.org/x/net/trace.Trace")
 
-// NewContext returns a copy of the parent context
-// and associates it with a Trace.
-func NewContext(ctx context.Context, tr Trace) context.Context {
-	return context.WithValue(ctx, contextKey, tr)
-}
-
-// FromContext returns the Trace bound to the context, if any.
-func FromContext(ctx context.Context) (tr Trace, ok bool) {
-	tr, ok = ctx.Value(contextKey).(Trace)
-	return
-}
-
 // Trace represents an active request.
 type Trace interface {
 	// LazyLog adds x to the event log. It will be evaluated each time the
diff --git a/vendor/golang.org/x/net/trace/trace_go16.go b/vendor/golang.org/x/net/trace/trace_go16.go
new file mode 100644
index 000000000..d60819118
--- /dev/null
+++ b/vendor/golang.org/x/net/trace/trace_go16.go
@@ -0,0 +1,21 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !go1.7
+
+package trace
+
+import "golang.org/x/net/context"
+
+// NewContext returns a copy of the parent context
+// and associates it with a Trace.
+func NewContext(ctx context.Context, tr Trace) context.Context {
+	return context.WithValue(ctx, contextKey, tr)
+}
+
+// FromContext returns the Trace bound to the context, if any.
+func FromContext(ctx context.Context) (tr Trace, ok bool) {
+	tr, ok = ctx.Value(contextKey).(Trace)
+	return
+}
diff --git a/vendor/golang.org/x/net/trace/trace_go17.go b/vendor/golang.org/x/net/trace/trace_go17.go
new file mode 100644
index 000000000..df6e1fba7
--- /dev/null
+++ b/vendor/golang.org/x/net/trace/trace_go17.go
@@ -0,0 +1,21 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build go1.7
+
+package trace
+
+import "context"
+
+// NewContext returns a copy of the parent context
+// and associates it with a Trace.
+func NewContext(ctx context.Context, tr Trace) context.Context {
+	return context.WithValue(ctx, contextKey, tr)
+}
+
+// FromContext returns the Trace bound to the context, if any.
+func FromContext(ctx context.Context) (tr Trace, ok bool) {
+	tr, ok = ctx.Value(contextKey).(Trace)
+	return
+}