[extractors] Use http_headers for setting the User-Agent and the Referer

youtube_dl/downloader/http.py

@@ -24,10 +24,6 @@ class HttpFD(FileDownloader):
 
         # Do not include the Accept-Encoding header
         headers = {'Youtubedl-no-compression': 'True'}
-        if 'user_agent' in info_dict:
-            headers['User-agent'] = info_dict['user_agent']
-        if 'http_referer' in info_dict:
-            headers['Referer'] = info_dict['http_referer']
         add_headers = info_dict.get('http_headers')
         if add_headers:
             headers.update(add_headers)

youtube_dl/extractor/appletrailers.py

@@ -129,7 +129,9 @@ class AppleTrailersIE(InfoExtractor):
                 'thumbnail': thumbnail,
                 'upload_date': upload_date,
                 'uploader_id': uploader_id,
-                'user_agent': 'QuickTime compatible (youtube-dl)',
+                'http_headers': {
+                    'User-Agent': 'QuickTime compatible (youtube-dl)',
+                },
             })
 
         return {

youtube_dl/extractor/common.py

@@ -108,7 +108,6 @@ class InfoExtractor(object):
                                   (quality takes higher priority)
                                  -1 for default (order by other properties),
                                  -2 or smaller for less than default.
-                    * http_referer  HTTP Referer header value to set.
                     * http_method  HTTP method to use for the download.
                     * http_headers  A dictionary of additional HTTP headers
                                  to add to the request.

youtube_dl/extractor/videomega.py

@@ -62,5 +62,7 @@ class VideoMegaIE(InfoExtractor):
             'title': title,
             'formats': formats,
             'thumbnail': thumbnail,
-            'http_referer': iframe_url,
+            'http_headers': {
+                'Referer': iframe_url,
+            },
         }

youtube_dl/extractor/wdr.py

@@ -169,7 +169,9 @@ class WDRMobileIE(InfoExtractor):
             'title': mobj.group('title'),
             'age_limit': int(mobj.group('age_limit')),
             'url': url,
-            'user_agent': 'mobile',
+            'http_headers': {
+                'User-Agent': 'mobile',
+            },
         }