Exclude experimental.socket from documentation.

chrome/common/extensions/docs/samples.json

 {
   "api": {
     "chrome.bookmarks.create": "bookmarks.html#method-create",
     "chrome.bookmarks.export": "bookmarks.html#method-export",
     "chrome.bookmarks.get": "bookmarks.html#method-get",
     "chrome.bookmarks.getChildren": "bookmarks.html#method-getChildren",
     "chrome.bookmarks.getRecent": "bookmarks.html#method-getRecent",
     "chrome.bookmarks.getSubTree": "bookmarks.html#method-getSubTree",
     "chrome.bookmarks.getTree": "bookmarks.html#method-getTree",
     "chrome.bookmarks.import": "bookmarks.html#method-import",
@@ skipping 49 matching lines @@
     "chrome.experimental.devtools.inspectedWindow.getResources": "experimental.devtools.inspectedWindow.html#method-getResources",
     "chrome.experimental.devtools.inspectedWindow.onResourceAdded": "experimental.devtools.inspectedWindow.html#event-onResourceAdded",
     "chrome.experimental.devtools.inspectedWindow.onResourceContentCommitted": "experimental.devtools.inspectedWindow.html#event-onResourceContentCommitted",
     "chrome.experimental.devtools.inspectedWindow.reload": "experimental.devtools.inspectedWindow.html#method-reload",
     "chrome.experimental.devtools.network.getHAR": "experimental.devtools.network.html#method-getHAR",
     "chrome.experimental.devtools.network.onNavigated": "experimental.devtools.network.html#event-onNavigated",
     "chrome.experimental.devtools.network.onRequestFinished": "experimental.devtools.network.html#event-onRequestFinished",
     "chrome.experimental.devtools.panels.create": "experimental.devtools.panels.html#method-create",
     "chrome.experimental.devtools.panels.setOpenResourceHandler": "experimental.devtools.panels.html#method-setOpenResourceHandler",
     "chrome.experimental.infobars.show": "experimental.infobars.html#method-show",
-    "chrome.experimental.socket.connect": "experimental.socket.html#method-connect",
-    "chrome.experimental.socket.create": "experimental.socket.html#method-create",
-    "chrome.experimental.socket.disconnect": "experimental.socket.html#method-disconnect",
-    "chrome.experimental.socket.send": "experimental.socket.html#method-send",
     "chrome.experimental.speechInput.isRecording": "experimental.speechInput.html#method-isRecording",
     "chrome.experimental.speechInput.onError": "experimental.speechInput.html#event-onError",
     "chrome.experimental.speechInput.onResult": "experimental.speechInput.html#event-onResult",
     "chrome.experimental.speechInput.onSoundEnd": "experimental.speechInput.html#event-onSoundEnd",
     "chrome.experimental.speechInput.onSoundStart": "experimental.speechInput.html#event-onSoundStart",
     "chrome.experimental.speechInput.start": "experimental.speechInput.html#method-start",
     "chrome.experimental.speechInput.stop": "experimental.speechInput.html#method-stop",
     "chrome.experimental.storage.onChanged": "experimental.storage.html#event-onChanged",
     "chrome.extension.connect": "extension.html#method-connect",
     "chrome.extension.getBackgroundPage": "extension.html#method-getBackgroundPage",
@@ skipping 2391 matching lines @@
         "manifest.json",
         "popup.html",
         "popup.js",
         "sample.css"
       ],
       "source_hash": "62ca453d8d1551ff63dd7c78b49d546bc3af17c6",
       "zip_path": "examples\/api\/extension\/isAllowedAccess.zip"
     }
   ]
 }