Bump version to 1.0.9; update JSON schemas; add new APIs

etc/api/youtube/v3/youtube-api.json

@@ -30,7 +30,7 @@
     "description": "Supports core YouTube features, such as uploading videos, creating and managing playlists, searching for content, and much more.", 
     "discoveryVersion": "v1", 
     "documentationLink": "https://developers.google.com/youtube/v3", 
-    "etag": "\"VPK3KBfpaEgZ16pozGOoMYfKc0U/yNEBLgYt8QSwGhO0wZtfTAWOMEQ\"", 
+    "etag": "\"9eZ1uxVRThTDhLJCZHhqs3eQWz4/iJCWgcHgub352FxdGhLwKx-bej4\"", 
     "icons": {
         "x16": "https://www.google.com/images/icons/product/youtube-16.png", 
         "x32": "https://www.google.com/images/icons/product/youtube-32.png"
@@ -3493,7 +3493,7 @@
             }
         }
     }, 
-    "revision": "20190128", 
+    "revision": "20190513", 
     "rootUrl": "https://www.googleapis.com/", 
     "schemas": {
         "AccessPolicy": {
@@ -4153,12 +4153,10 @@
                     "description": "The method or protocol used to transmit the video stream.", 
                     "enum": [
                         "dash", 
-                        "http", 
-                        "rtmp", 
-                        "webrtc"
+                        "hls", 
+                        "rtmp"
                     ], 
                     "enumDescriptions": [
-                        "", 
                         "", 
                         "", 
                         ""