Remove obsolete Cast extension IDs from various whitelists and files.

ui/file_manager/video_player/manifest.json

 {
   // chrome-extension://jcgeabjmjgoblfofpppfkcoakmfobdko/
   "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw0/gRbJc545iEGRZs20Rl/HtrSUp8H3gJd4Y6hCe0CG1xQiJhZ5nc8qZyxa96gMxRAKBq54S6sjVVtV6uS70oU6FvrvwItByYkkqr4ZE7eMJKwMqnGItxWbh6KBodf89lpKoIy6MtYTqubBhXB/IQBZsXah90tXwRzaaJNWw+2BBRIhcPsH3ng+wgN7rwFxo4HIv9ZpqkYlx90rwkfjOmKPPnSXyXFIBJfmqfdbd8PLtcxzzOTE+vxwoXZuYWrthKm4uKfNqXIYns74sSJlqyKfctuR+nQdNh8uePv0e+/Ul3wER1/jIXULLjfyoaklyDs+ak3SDf+xWScJ+0LJ0AwIDAQAB",
   "manifest_version": 2,
   "name": "Video Player",
   "version": "1.0",
   "description": "Video Player",
   "display_in_launcher": false,
   "incognito" : "split",
   "icons": {
@@ skipping 48 matching lines @@
       "scripts": [
         "chrome://resources/js/analytics.js",
         "chrome://resources/js/cr.js",
         "chrome://resources/js/cr/event_target.js",
         "chrome://resources/js/cr/ui/array_data_model.js",
         "chrome://resources/js/load_time_data.js",
         "chrome-extension://hhaomjibdihmijegdhdafkllkbggdgoj/background/js/background_common_scripts.js",
         "js/background_scripts.js"
       ]
     },
-    // The following ids are cast extension's ids .
-    // - boadgeojelhgndaghljhdicfkmllpafd (release)
-    // - dliochdbjfkdbacpmhlcpmleaejidimm (beta)
-    // - hfaagokkkhdbgiakmmlclaapfelnkoah
-    // - fmfcbgogabcbclcofgocippekhfcmgfj
-    // - enhhojjnijigcajfphajepfemndkmdlo
-    "content_security_policy": "default-src 'none'; script-src 'self' blob: filesystem: chrome://resources chrome-extension://boadgeojelhgndaghljhdicfkmllpafd chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm chrome-extension://hhaomjibdihmijegdhdafkllkbggdgoj chrome-extension://fmfcbgogabcbclcofgocippekhfcmgfj chrome-extension://enhhojjnijigcajfphajepfemndkmdlo; style-src 'self' blob: filesystem: chrome://resources 'unsafe-inline'; img-src 'self' blob: filesystem: chrome://theme chrome://resources data: https://www.googledrive.com; media-src 'self' blob: filesystem:; object-src 'self' blob: filesystem:; font-src chrome://resources;"
+    // enhhojjnijigcajfphajepfemndkmdlo is the Media Router component extension ID.
+    "content_security_policy": "default-src 'none'; script-src 'self' blob: filesystem: chrome://resources chrome-extension://hhaomjibdihmijegdhdafkllkbggdgoj chrome-extension://enhhojjnijigcajfphajepfemndkmdlo; style-src 'self' blob: filesystem: chrome://resources 'unsafe-inline'; img-src 'self' blob: filesystem: chrome://theme chrome://resources data: https://www.googledrive.com; media-src 'self' blob: filesystem:; object-src 'self' blob: filesystem:; font-src chrome://resources;"
   }
 }