Add Cast discovery to manifest (#24504)

homeassistant/components/cast/manifest.json

@@ -7,5 +7,6 @@
     "pychromecast==3.2.2"
   ],
   "dependencies": [],
+  "zeroconf": ["_googlecast._tcp.local."],
   "codeowners": []
 }

homeassistant/components/discovery/__init__.py

@@ -47,7 +47,6 @@ SERVICE_XIAOMI_GW = 'xiaomi_gw'
 
 CONFIG_ENTRY_HANDLERS = {
     SERVICE_DAIKIN: 'daikin',
-    'google_cast': 'cast',
     SERVICE_HEOS: 'heos',
     SERVICE_TELLDUSLIVE: 'tellduslive',
     'sonos': 'sonos',
@@ -97,8 +96,9 @@ MIGRATED_SERVICE_HANDLERS = [
     'axis',
     'deconz',
     'esphome',
-    'ikea_tradfri',
+    'google_cast',
     'homekit',
+    'ikea_tradfri',
     'philips_hue',
     SERVICE_WEMO,
 ]

homeassistant/generated/zeroconf.py

@@ -14,6 +14,9 @@ ZEROCONF = {
     "_esphomelib._tcp.local.": [
         "esphome"
     ],
+    "_googlecast._tcp.local.": [
+        "cast"
+    ],
     "_hap._tcp.local.": [
         "homekit_controller"
     ]