Add 'Server' and 'User-Agent' default header fields.

sdk/lib/io/http.dart

Index: sdk/lib/io/http.dart
diff --git a/sdk/lib/io/http.dart b/sdk/lib/io/http.dart
index 4ea77f72d75e5591bcb105d792c70036babb3d83..ea6527d9a7a403f8e4ff3c1ccf8108c51c6998f0 100644
--- a/sdk/lib/io/http.dart
+++ b/sdk/lib/io/http.dart
@@ -171,6 +171,14 @@ abstract class HttpServer implements Stream<HttpRequest> {
    * current connections handled by the server.
    */
   HttpConnectionsInfo connectionsInfo();
+
+  /**
+   * Set and get the version of the [:HttpServer:]. The string will be set as

[Søren Gjesse, 2013/06/11 11:02:00]

Change

  Set and get the version of the [:HttpServer:].

to something like

  Set and get the default value of the `Server` header for all responses
generated by this [HttpServer].

Also document the actual default value.

[Anders Johnsen, 2013/06/11 11:37:55]

Done.

+   * the [:Server:] header field for all [HttpResponse]s.

[Søren Gjesse, 2013/06/11 11:02:00]

You can use ` ` instead of [: :].

[Anders Johnsen, 2013/06/11 11:37:55]

Done.

+   *
+   * If the version is set to [:null:]. the field won't be set.

[Søren Gjesse, 2013/06/11 11:02:00]

the field won't be set -> no default `Server` header will be added to each
response.

[Anders Johnsen, 2013/06/11 11:37:55]

Done.

+   */
+  String version;

[Søren Gjesse, 2013/06/11 11:02:00]

This should be called serverHeader (or maybe even serverHeaderValue). There is
not a well established name for this as there is for user agent.

[Anders Johnsen, 2013/06/11 11:37:55]

Done.

 }
 
 
@@ -879,6 +887,14 @@ abstract class HttpClient {
    */
   Duration idleTimeout;
 
+  /**
+   * Set and get the user agent of the [:HttpClient:]. The string will be set as
+   * the [:User-Agent:] header field for all [HttpClientRequest]s.
+   *
+   * If the version is set to [:null:]. the field won't be set.
+   */
+  String userAgent;
+
   factory HttpClient() => new _HttpClient();
 
   /**