[utils] Remove url_infer_protocol

youtube_dl/extractor/generic.py

@@ -26,7 +26,6 @@ from ..utils import (
     unsmuggle_url,
     UnsupportedError,
     url_basename,
-    url_infer_protocol,
     xpath_text,
 )
 from .brightcove import BrightcoveIE
@@ -1286,7 +1285,7 @@ class GenericIE(InfoExtractor):
             r'<iframe[^>]+src="(?P<url>%s)"' % UDNEmbedIE._VALID_URL, webpage)
         if mobj is not None:
             return self.url_result(
-                url_infer_protocol(url, mobj.group('url')), 'UDNEmbed')
+                compat_urlparse.urljoin(url, mobj.group('url')), 'UDNEmbed')
 
         def check_video(vurl):
             if YoutubeIE.suitable(vurl):

youtube_dl/extractor/udn.py

@@ -3,10 +3,8 @@ from __future__ import unicode_literals
 
 import json
 from .common import InfoExtractor
-from ..utils import (
-    url_infer_protocol,
-    js_to_json
-)
+from ..utils import js_to_json
+from ..compat import compat_urlparse
 
 
 class UDNEmbedIE(InfoExtractor):
@@ -45,7 +43,7 @@ class UDNEmbedIE(InfoExtractor):
 
         formats = [{
             'url': self._download_webpage(
-                url_infer_protocol(url, api_url), video_id,
+                compat_urlparse.urljoin(url, api_url), video_id,
                 'retrieve url for %s video' % video_type),
             'format_id': video_type,
             'preference': 0 if video_type == 'mp4' else -1,