http: rename ClientTransport to Transport

http.Transport looks nicer, and ServerTransport
doesn't make much sense anyway.

R=rsc
CC=golang-dev
https://golang.org/cl/4239056

src/pkg/http/client.go

@@ -20,15 +20,15 @@ import (
 // that uses DefaultTransport.
 // Client is not yet very configurable.
 type Client struct {
-	Transport ClientTransport // if nil, DefaultTransport is used
+	Transport Transport // if nil, DefaultTransport is used
 }
 
 // DefaultClient is the default Client and is used by Get, Head, and Post.
 var DefaultClient = &Client{}
 
-// ClientTransport is an interface representing the ability to execute a
+// Transport is an interface representing the ability to execute a
 // single HTTP transaction, obtaining the Response for a given Request.
-type ClientTransport interface {
+type Transport interface {
 	// Do executes a single HTTP transaction, returning the Response for the
 	// request req.  Do should not attempt to interpret the response.
 	// In particular, Do must return err == nil if it obtained a response,
@@ -104,7 +104,7 @@ func (c *Client) Do(req *Request) (resp *Response, err os.Error) {
 // TODO: support persistent connections (multiple requests on a single connection).
 // send() method is nonpublic because, when we refactor the code for persistent
 // connections, it may no longer make sense to have a method with this signature.
-func send(req *Request, t ClientTransport) (resp *Response, err os.Error) {
+func send(req *Request, t Transport) (resp *Response, err os.Error) {
 	if t == nil {
 		t = DefaultTransport
 		if t == nil {
@@ -115,7 +115,7 @@ func send(req *Request, t ClientTransport) (resp *Response, err os.Error) {
 
 	// Most the callers of send (Get, Post, et al) don't need
 	// Headers, leaving it uninitialized.  We guarantee to the
-	// ClientTransport that this has been initialized, though.
+	// Transport that this has been initialized, though.
 	if req.Header == nil {
 		req.Header = Header(make(map[string][]string))
 	}

src/pkg/http/transport.go

@@ -15,18 +15,19 @@ import (
 	"sync"
 )
 
-// DefaultTransport is the default implementation of ClientTransport
-// and is used by DefaultClient.  It establishes a new network connection for
-// each call to Do and uses HTTP proxies as directed by the $HTTP_PROXY and
-// $NO_PROXY (or $http_proxy and $no_proxy) environment variables.
-var DefaultTransport ClientTransport = &transport{}
+// DefaultTransport is the default implementation of Transport and is
+// used by DefaultClient.  It establishes a new network connection for
+// each call to Do and uses HTTP proxies as directed by the
+// $HTTP_PROXY and $NO_PROXY (or $http_proxy and $no_proxy)
+// environment variables.
+var DefaultTransport Transport = &transport{}
 
-// transport implements http.ClientTranport for the default case,
-// using TCP connections to either the host or a proxy, serving
-// http or https schemes.  In the future this may become public
-// and support options on keep-alive connection duration, pipelining
-// controls, etc.  For now this is simply a port of the old Go code
-// client code to the http.ClientTransport interface.
+// transport implements Tranport for the default case, using TCP
+// connections to either the host or a proxy, serving http or https
+// schemes.  In the future this may become public and support options
+// on keep-alive connection duration, pipelining controls, etc.  For
+// now this is simply a port of the old Go code client code to the
+// Transport interface.
 type transport struct {
 	// TODO: keep-alives, pipelining, etc using a map from
 	// scheme/host to a connection.  Something like: