Update Google Cloud API client import paths

Bump version of golang.org/x/oauth2
Vendor google.golang.org/cloud/
Vendor google.golang.org/api/
Vendor cloud.google.com/go/compute/
Replace google.golang.org/cloud with cloud.google.com/go/

Fixes #30069

vendor/google.golang.org/api/googleapi/googleapi.go

@@ -149,12 +149,12 @@ func IsNotModified(err error) bool {
 // CheckMediaResponse returns an error (of type *Error) if the response
 // status code is not 2xx. Unlike CheckResponse it does not assume the
 // body is a JSON error document.
+// It is the caller's responsibility to close res.Body.
 func CheckMediaResponse(res *http.Response) error {
 	if res.StatusCode >= 200 && res.StatusCode <= 299 {
 		return nil
 	}
 	slurp, _ := ioutil.ReadAll(io.LimitReader(res.Body, 1<<20))
-	res.Body.Close()
 	return &Error{
 		Code: res.StatusCode,
 		Body: string(slurp),
@@ -278,41 +278,15 @@ func ResolveRelative(basestr, relstr string) string {
 	return us
 }
 
-// has4860Fix is whether this Go environment contains the fix for
-// http://golang.org/issue/4860
-var has4860Fix bool
-
-// init initializes has4860Fix by checking the behavior of the net/http package.
-func init() {
-	r := http.Request{
-		URL: &url.URL{
-			Scheme: "http",
-			Opaque: "//opaque",
-		},
-	}
-	b := &bytes.Buffer{}
-	r.Write(b)
-	has4860Fix = bytes.HasPrefix(b.Bytes(), []byte("GET http"))
-}
-
-// SetOpaque sets u.Opaque from u.Path such that HTTP requests to it
-// don't alter any hex-escaped characters in u.Path.
-func SetOpaque(u *url.URL) {
-	u.Opaque = "//" + u.Host + u.Path
-	if !has4860Fix {
-		u.Opaque = u.Scheme + ":" + u.Opaque
-	}
-}
-
 // Expand subsitutes any {encoded} strings in the URL passed in using
 // the map supplied.
 //
 // This calls SetOpaque to avoid encoding of the parameters in the URL path.
 func Expand(u *url.URL, expansions map[string]string) {
-	expanded, err := uritemplates.Expand(u.Path, expansions)
+	escaped, unescaped, err := uritemplates.Expand(u.Path, expansions)
 	if err == nil {
-		u.Path = expanded
-		SetOpaque(u)
+		u.Path = unescaped
+		u.RawPath = escaped
 	}
 }