update google.golang.org/grpc to 1.7.2 (#3101)

glide.lock

@@ -1,5 +1,5 @@
-hash: 397d714c3a444071879981d3e6575931bd637166e845c6577eaea08ffde7e33d
-updated: 2017-10-27T11:04:22.887120936-04:00
+hash: 3d0ff2a6cf119f719abbd2606da14a00073627972be81a6e68404ad92c2d4cd5
+updated: 2017-11-04T13:04:46.410949815+01:00
 imports:
 - name: cloud.google.com/go
   version: 3b1ae45394a234c385be014e9a488f2bb6eef821
@@ -320,18 +320,27 @@ imports:
   - internal/remote_api
   - internal/urlfetch
   - urlfetch
+- name: google.golang.org/genproto
+  version: 09f6ed296fc66555a25fe4ce95173148778dfa85
+  subpackages:
+  - googleapis/rpc/status
 - name: google.golang.org/grpc
-  version: 8050b9cbc271307e5a716a9d782803d09b0d6f2d
+  version: 5ffe3083946d5603a0578721101dc8165b1d5b5f
   subpackages:
+  - balancer
   - codes
+  - connectivity
   - credentials
+  - grpclb/grpc_lb_v1/messages
   - grpclog
   - internal
   - keepalive
   - metadata
   - naming
   - peer
+  - resolver
   - stats
+  - status
   - tap
   - transport
 - name: gopkg.in/inf.v0

glide.yaml

@@ -26,7 +26,7 @@ import:
   - ptypes/any
   - ptypes/timestamp
 - package: google.golang.org/grpc
-  version: 1.2.1
+  version: 1.7.2
   # 1.8.1 libs are hosed and need some manual intervention, so pinning to 1.8.0 for now
   # so others aren't getting errors when running `glide up`
 - package: k8s.io/kubernetes

pkg/helm/option.go

@@ -426,7 +426,7 @@ func WithMaxHistory(max int32) HistoryOption {
 // NewContext creates a versioned context.
 func NewContext() context.Context {
 	md := metadata.Pairs("x-helm-api-client", version.GetVersion())
-	return metadata.NewContext(context.TODO(), md)
+	return metadata.NewOutgoingContext(context.TODO(), md)
 }
 
 // ReleaseTestOption allows configuring optional request data for

pkg/tiller/server.go

@@ -78,7 +78,7 @@ func splitMethod(fullMethod string) (string, string) {
 }
 
 func versionFromContext(ctx context.Context) string {
-	if md, ok := metadata.FromContext(ctx); ok {
+	if md, ok := metadata.FromIncomingContext(ctx); ok {
 		if v, ok := md["x-helm-api-client"]; ok && len(v) > 0 {
 			return v[0]
 		}