net/http: update bundled golang.org/x/net/http2 to import security fix

Update golang.org/x/net to v0.0.0-20190813141303-74dc4d7220e7 to import
the following security fix.

    commit 74dc4d7220e7acc4e100824340f3e66577424772
    Author: Filippo Valsorda <filippo@golang.org>
    Date:   Sun Aug 11 02:12:18 2019 -0400

    http2: limit number of control frames in server send queue

    An attacker could cause servers to queue an unlimited number of PING
    ACKs or RST_STREAM frames by soliciting them and not reading them, until
    the program runs out of memory.

    Limit control frames in the queue to a few thousands (matching the limit
    imposed by other vendors) by counting as they enter and exit the scheduler,
    so the protection will work with any WriteScheduler.

    Once the limit is exceeded, close the connection, as we have no way to
    communicate with the peer.

    Change-Id: I842968fc6ed3eac654b497ade8cea86f7267886b
    Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/525552
    Reviewed-by: Brad Fitzpatrick <bradfitz@google.com>

This change was generated with cmd/go and cmd/bundle:

$ go get -u golang.org/x/net
$ go mod tidy
$ go mod vendor
$ go generate net/http

Fixes CVE-2019-9512 and CVE-2019-9514
Fixes #33606

Change-Id: I464baf96175006aa101d65d3b0f6494f28a626ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/190137
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>

9 files changed, 9 insertions, 9 deletions

diff --git a/src/vendor/golang.org/x/net/lif/zsys_solaris_amd64.go b/src/vendor/golang.org/x/net/lif/zsys_solaris_amd64.go
index b5e999bec3..d7a70d4ed9 100644
--- a/src/vendor/golang.org/x/net/lif/zsys_solaris_amd64.go
+++ b/src/vendor/golang.org/x/net/lif/zsys_solaris_amd64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_solaris.go
 
 package lif
diff --git a/src/vendor/golang.org/x/net/route/zsys_darwin.go b/src/vendor/golang.org/x/net/route/zsys_darwin.go
index 4e2e1ab090..19e4133f7d 100644
--- a/src/vendor/golang.org/x/net/route/zsys_darwin.go
+++ b/src/vendor/golang.org/x/net/route/zsys_darwin.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_darwin.go
 
 package route
diff --git a/src/vendor/golang.org/x/net/route/zsys_dragonfly.go b/src/vendor/golang.org/x/net/route/zsys_dragonfly.go
index 719c88d11f..8ed2d4d550 100644
--- a/src/vendor/golang.org/x/net/route/zsys_dragonfly.go
+++ b/src/vendor/golang.org/x/net/route/zsys_dragonfly.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_dragonfly.go
 
 package route
diff --git a/src/vendor/golang.org/x/net/route/zsys_freebsd_386.go b/src/vendor/golang.org/x/net/route/zsys_freebsd_386.go
index b03bc01f65..f36aaadb59 100644
--- a/src/vendor/golang.org/x/net/route/zsys_freebsd_386.go
+++ b/src/vendor/golang.org/x/net/route/zsys_freebsd_386.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package route
diff --git a/src/vendor/golang.org/x/net/route/zsys_freebsd_amd64.go b/src/vendor/golang.org/x/net/route/zsys_freebsd_amd64.go
index 0b675b3d3f..4c639b82e4 100644
--- a/src/vendor/golang.org/x/net/route/zsys_freebsd_amd64.go
+++ b/src/vendor/golang.org/x/net/route/zsys_freebsd_amd64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package route
diff --git a/src/vendor/golang.org/x/net/route/zsys_freebsd_arm.go b/src/vendor/golang.org/x/net/route/zsys_freebsd_arm.go
index 58f8ea16f2..710c1472b6 100644
--- a/src/vendor/golang.org/x/net/route/zsys_freebsd_arm.go
+++ b/src/vendor/golang.org/x/net/route/zsys_freebsd_arm.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package route
diff --git a/src/vendor/golang.org/x/net/route/zsys_netbsd.go b/src/vendor/golang.org/x/net/route/zsys_netbsd.go
index e0df45e8b5..b4f66ca6cb 100644
--- a/src/vendor/golang.org/x/net/route/zsys_netbsd.go
+++ b/src/vendor/golang.org/x/net/route/zsys_netbsd.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_netbsd.go
 
 package route
diff --git a/src/vendor/golang.org/x/net/route/zsys_openbsd.go b/src/vendor/golang.org/x/net/route/zsys_openbsd.go
index db8c8efb49..1021b4cea4 100644
--- a/src/vendor/golang.org/x/net/route/zsys_openbsd.go
+++ b/src/vendor/golang.org/x/net/route/zsys_openbsd.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_openbsd.go
 
 package route
diff --git a/src/vendor/modules.txt b/src/vendor/modules.txt
index 20f261bf83..453a312661 100644
--- a/src/vendor/modules.txt
+++ b/src/vendor/modules.txt
@@ -7,7 +7,7 @@ golang.org/x/crypto/hkdf
 golang.org/x/crypto/internal/chacha20
 golang.org/x/crypto/internal/subtle
 golang.org/x/crypto/poly1305
-# golang.org/x/net v0.0.0-20190607181551-461777fb6f67
+# golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7
 golang.org/x/net/dns/dnsmessage
 golang.org/x/net/http/httpguts
 golang.org/x/net/http/httpproxy