diff --git a/call.go b/call.go
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diff --git a/clientconn.go b/clientconn.go
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diff --git a/codes/codes.go b/codes/codes.go
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diff --git a/credentials/credentials.go b/credentials/credentials.go
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diff --git a/interop/client/client.go b/interop/client/client.go
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diff --git a/interop/server/server.go b/interop/server/server.go
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diff --git a/interop/testdata/test_proto.pb.go b/interop/testdata/test_proto.pb.go
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diff --git a/interop/testdata/test_proto_grpc.pb.go b/interop/testdata/test_proto_grpc.pb.go
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diff --git a/metadata/metadata.go b/metadata/metadata.go
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diff --git a/metadata/metadata_test.go b/metadata/metadata_test.go
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diff --git a/rpc_util.go b/rpc_util.go
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diff --git a/rpc_util_test.go b/rpc_util_test.go
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diff --git a/server.go b/server.go
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diff --git a/stream.go b/stream.go
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diff --git a/test/end2end_test.go b/test/end2end_test.go
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diff --git a/test/testdata/test.pb.go b/test/testdata/test.pb.go
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new mode 100644
index 0477e2be455..f9d22977d73
--- a/test/testdata/test.pb.go
+++ b/test/testdata/test.pb.go
@@ -31,14 +31,14 @@
  *
  */
 // Code generated by protoc-gen-go.
-// source: net/grpc/go/test/test.proto
+// source: test.proto
 // DO NOT EDIT!
 
 /*
 Package test is a generated protocol buffer package.
 
 It is generated from these files:
-	net/grpc/go/test/test.proto
+	test.proto
 
 It has these top-level messages:
 	DivArgs
@@ -62,10 +62,9 @@ type DivArgs struct {
 	XXX_unrecognized []byte `json:"-"`
 }
 
-func (m *DivArgs) Reset()                    { *m = DivArgs{} }
-func (m *DivArgs) String() string            { return proto.CompactTextString(m) }
-func (*DivArgs) ProtoMessage()               {}
-func (*DivArgs) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+func (m *DivArgs) Reset()         { *m = DivArgs{} }
+func (m *DivArgs) String() string { return proto.CompactTextString(m) }
+func (*DivArgs) ProtoMessage()    {}
 
 func (m *DivArgs) GetDividend() int64 {
 	if m != nil && m.Dividend != nil {
@@ -87,10 +86,9 @@ type DivReply struct {
 	XXX_unrecognized []byte `json:"-"`
 }
 
-func (m *DivReply) Reset()                    { *m = DivReply{} }
-func (m *DivReply) String() string            { return proto.CompactTextString(m) }
-func (*DivReply) ProtoMessage()               {}
-func (*DivReply) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+func (m *DivReply) Reset()         { *m = DivReply{} }
+func (m *DivReply) String() string { return proto.CompactTextString(m) }
+func (*DivReply) ProtoMessage()    {}
 
 func (m *DivReply) GetQuotient() int64 {
 	if m != nil && m.Quotient != nil {
@@ -111,10 +109,9 @@ type FibArgs struct {
 	XXX_unrecognized []byte `json:"-"`
 }
 
-func (m *FibArgs) Reset()                    { *m = FibArgs{} }
-func (m *FibArgs) String() string            { return proto.CompactTextString(m) }
-func (*FibArgs) ProtoMessage()               {}
-func (*FibArgs) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+func (m *FibArgs) Reset()         { *m = FibArgs{} }
+func (m *FibArgs) String() string { return proto.CompactTextString(m) }
+func (*FibArgs) ProtoMessage()    {}
 
 func (m *FibArgs) GetLimit() int64 {
 	if m != nil && m.Limit != nil {
@@ -128,10 +125,9 @@ type Num struct {
 	XXX_unrecognized []byte `json:"-"`
 }
 
-func (m *Num) Reset()                    { *m = Num{} }
-func (m *Num) String() string            { return proto.CompactTextString(m) }
-func (*Num) ProtoMessage()               {}
-func (*Num) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
+func (m *Num) Reset()         { *m = Num{} }
+func (m *Num) String() string { return proto.CompactTextString(m) }
+func (*Num) ProtoMessage()    {}
 
 func (m *Num) GetNum() int64 {
 	if m != nil && m.Num != nil {
@@ -145,10 +141,9 @@ type FibReply struct {
 	XXX_unrecognized []byte `json:"-"`
 }
 
-func (m *FibReply) Reset()                    { *m = FibReply{} }
-func (m *FibReply) String() string            { return proto.CompactTextString(m) }
-func (*FibReply) ProtoMessage()               {}
-func (*FibReply) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
+func (m *FibReply) Reset()         { *m = FibReply{} }
+func (m *FibReply) String() string { return proto.CompactTextString(m) }
+func (*FibReply) ProtoMessage()    {}
 
 func (m *FibReply) GetCount() int64 {
 	if m != nil && m.Count != nil {
@@ -159,24 +154,3 @@ func (m *FibReply) GetCount() int64 {
 
 func init() {
 }
-
-var fileDescriptor0 = []byte{
-	// 268 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x84, 0x90, 0xbf, 0x4e, 0xc3, 0x30,
-	0x10, 0x87, 0xb9, 0xba, 0x34, 0xe9, 0xa1, 0xf2, 0xc7, 0x53, 0x28, 0x0b, 0xf2, 0x80, 0x3a, 0xa0,
-	0x06, 0x21, 0x5e, 0x00, 0x84, 0xd8, 0xca, 0x00, 0x1b, 0x5b, 0x68, 0xac, 0x60, 0xa9, 0xb1, 0x83,
-	0xe3, 0x54, 0xea, 0xdb, 0x64, 0x64, 0xe4, 0x11, 0x39, 0x3b, 0x09, 0x88, 0xa9, 0x4b, 0x94, 0xbb,
-	0xfb, 0xee, 0xa7, 0xef, 0x8c, 0x17, 0x5a, 0xba, 0xb4, 0xb0, 0xd5, 0x3a, 0x2d, 0x4c, 0xea, 0x64,
-	0xed, 0xc2, 0x67, 0x59, 0x59, 0xe3, 0x0c, 0x1f, 0xfb, 0x7f, 0x71, 0x8d, 0xd1, 0xa3, 0xda, 0xde,
-	0xdb, 0xa2, 0xe6, 0xa7, 0x18, 0xe7, 0x6a, 0xab, 0x72, 0xa9, 0xf3, 0x04, 0x2e, 0x47, 0x0b, 0xc6,
-	0x4f, 0x30, 0xf2, 0x9d, 0xda, 0xd8, 0x64, 0xe4, 0x1b, 0x22, 0xc5, 0x98, 0xe8, 0x17, 0x59, 0x6d,
-	0x76, 0x1e, 0xff, 0x6c, 0x8c, 0x53, 0x52, 0xbb, 0x1e, 0x3f, 0xc3, 0xa9, 0x95, 0x65, 0xa6, 0x74,
-	0x2e, 0x87, 0x85, 0x04, 0xa3, 0x27, 0xf5, 0x1e, 0xe2, 0x67, 0x78, 0xb8, 0x51, 0xa5, 0xf2, 0x30,
-	0xd0, 0x84, 0x23, 0x7b, 0x6e, 0x4a, 0x7e, 0x84, 0x4c, 0x37, 0x65, 0x17, 0x20, 0xce, 0x31, 0x26,
-	0xba, 0x8b, 0x27, 0x7c, 0x6d, 0x9a, 0x21, 0xfb, 0xf6, 0x1b, 0x70, 0xbc, 0xca, 0xdc, 0x07, 0xbf,
-	0x42, 0x46, 0x0a, 0x7c, 0xb6, 0x0c, 0xa7, 0xf4, 0xee, 0xf3, 0xe3, 0xdf, 0x32, 0x6c, 0x8b, 0x03,
-	0x7e, 0x17, 0x0e, 0x5b, 0x65, 0x7a, 0xb7, 0x8f, 0x9d, 0xb4, 0x00, 0x5f, 0x00, 0x0b, 0xb8, 0x01,
-	0x9f, 0x4e, 0x06, 0xc3, 0x46, 0xaf, 0x3e, 0x9f, 0x76, 0x25, 0xf9, 0x0a, 0x46, 0x24, 0x71, 0x02,
-	0xd9, 0x2b, 0xd9, 0xff, 0x0d, 0xfe, 0x31, 0xad, 0x4f, 0x7b, 0x98, 0xbc, 0x85, 0x27, 0xfe, 0x09,
-	0x00, 0x00, 0xff, 0xff, 0x5d, 0x79, 0x02, 0xec, 0x86, 0x01, 0x00, 0x00,
-}
diff --git a/test/testdata/test_grpc.pb.go b/test/testdata/test_grpc.pb.go
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diff --git a/transport/control.go b/transport/control.go
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diff --git a/transport/http2_client_transport.go b/transport/http2_client_transport.go
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diff --git a/transport/http2_server_transport.go b/transport/http2_server_transport.go
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diff --git a/transport/http_util.go b/transport/http_util.go
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diff --git a/transport/http_util_test.go b/transport/http_util_test.go
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diff --git a/transport/transport.go b/transport/transport.go
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diff --git a/transport/transport_test.go b/transport/transport_test.go
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