http2: s/Curl_http2_request/Curl_http2_request_upgrade

To better reflect its purpose

lib/http.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -2176,7 +2176,7 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
      (data->set.httpversion == CURL_HTTP_VERSION_2_0)) {
     /* append HTTP2 updrade magic stuff to the HTTP request if it isn't done
        over SSL */
-    result = Curl_http2_request(req_buffer, conn);
+    result = Curl_http2_request_upgrade(req_buffer, conn);
     if(result)
       return result;
   }

lib/http2.c

@@ -288,8 +288,8 @@ static nghttp2_settings_entry settings[] = {
 /*
  * Append headers to ask for a HTTP1.1 to HTTP2 upgrade.
  */
-CURLcode Curl_http2_request(Curl_send_buffer *req,
-                            struct connectdata *conn)
+CURLcode Curl_http2_request_upgrade(Curl_send_buffer *req,
+                                    struct connectdata *conn)
 {
   uint8_t binsettings[80];
   CURLcode result;

lib/http2.h

@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -32,11 +32,13 @@
  */
 int Curl_http2_ver(char *p, size_t len);
 
-CURLcode Curl_http2_request(Curl_send_buffer *req,
-                            struct connectdata *conn);
+CURLcode Curl_http2_init(struct connectdata *conn);
+CURLcode Curl_http2_send_request(struct connectdata *conn);
+CURLcode Curl_http2_request_upgrade(Curl_send_buffer *req,
+                                    struct connectdata *conn);
 void Curl_http2_switched(struct connectdata *conn);
 #else /* USE_NGHTTP2 */
-#define Curl_http2_request(x,y) CURLE_OK
+#define Curl_http2_request_upgrade(x,y) CURLE_OK
 #define Curl_http2_switched(x)
 #endif