Hack to restrict runtime API to dev channel rather than experimental.

chrome/common/extensions/docs/samples.json

 {
   "api": {
     "chrome.alarms.clear": "alarms.html#method-clear",
     "chrome.alarms.clearAll": "alarms.html#method-clearAll",
     "chrome.alarms.create": "alarms.html#method-create",
     "chrome.alarms.get": "alarms.html#method-get",
     "chrome.alarms.getAll": "alarms.html#method-getAll",
     "chrome.alarms.onAlarm": "alarms.html#event-onAlarm",
     "chrome.bookmarks.create": "bookmarks.html#method-create",
     "chrome.bookmarks.get": "bookmarks.html#method-get",
@@ skipping 164 matching lines @@
     "chrome.experimental.offscreenTabs.get": "experimental.offscreenTabs.html#method-get",
     "chrome.experimental.offscreenTabs.getAll": "experimental.offscreenTabs.html#method-getAll",
     "chrome.experimental.offscreenTabs.onUpdated": "experimental.offscreenTabs.html#event-onUpdated",
     "chrome.experimental.offscreenTabs.remove": "experimental.offscreenTabs.html#method-remove",
     "chrome.experimental.offscreenTabs.sendKeyboardEvent": "experimental.offscreenTabs.html#method-sendKeyboardEvent",
     "chrome.experimental.offscreenTabs.sendMouseEvent": "experimental.offscreenTabs.html#method-sendMouseEvent",
     "chrome.experimental.offscreenTabs.toDataUrl": "experimental.offscreenTabs.html#method-toDataUrl",
     "chrome.experimental.offscreenTabs.update": "experimental.offscreenTabs.html#method-update",
     "chrome.experimental.record.captureURLs": "experimental.record.html#method-captureURLs",
     "chrome.experimental.record.replayURLs": "experimental.record.html#method-replayURLs",
-    "chrome.experimental.runtime.getBackgroundPage": "experimental.runtime.html#method-getBackgroundPage",
-    "chrome.experimental.runtime.onBackgroundPageUnloadingSoon": "experimental.runtime.html#event-onBackgroundPageUnloadingSoon",
-    "chrome.experimental.runtime.onInstalled": "experimental.runtime.html#event-onInstalled",
     "chrome.experimental.serial.close": "experimental.serial.html#method-close",
     "chrome.experimental.serial.getPorts": "experimental.serial.html#method-getPorts",
     "chrome.experimental.serial.open": "experimental.serial.html#method-open",
     "chrome.experimental.serial.read": "experimental.serial.html#method-read",
     "chrome.experimental.serial.write": "experimental.serial.html#method-write",
     "chrome.experimental.socket.bind": "experimental.socket.html#method-bind",
     "chrome.experimental.socket.connect": "experimental.socket.html#method-connect",
     "chrome.experimental.socket.create": "experimental.socket.html#method-create",
     "chrome.experimental.socket.destroy": "experimental.socket.html#method-destroy",
     "chrome.experimental.socket.disconnect": "experimental.socket.html#method-disconnect",
@@ skipping 64 matching lines @@
     "chrome.pageAction.setTitle": "pageAction.html#method-setTitle",
     "chrome.pageAction.show": "pageAction.html#method-show",
     "chrome.pageCapture.saveAsMHTML": "pageCapture.html#method-saveAsMHTML",
     "chrome.permissions.contains": "permissions.html#method-contains",
     "chrome.permissions.getAll": "permissions.html#method-getAll",
     "chrome.permissions.onAdded": "permissions.html#event-onAdded",
     "chrome.permissions.onRemoved": "permissions.html#event-onRemoved",
     "chrome.permissions.remove": "permissions.html#method-remove",
     "chrome.permissions.request": "permissions.html#method-request",
     "chrome.proxy.onProxyError": "proxy.html#event-onProxyError",
+    "chrome.runtime.getBackgroundPage": "runtime.html#method-getBackgroundPage",
+    "chrome.runtime.onBackgroundPageUnloadingSoon": "runtime.html#event-onBackgroundPageUnloadingSoon",
+    "chrome.runtime.onInstalled": "runtime.html#event-onInstalled",
     "chrome.storage.StorageArea.clear": "storage.html#method-StorageArea-clear",
     "chrome.storage.StorageArea.get": "storage.html#method-StorageArea-get",
     "chrome.storage.StorageArea.getBytesInUse": "storage.html#method-StorageArea-getBytesInUse",
     "chrome.storage.StorageArea.remove": "storage.html#method-StorageArea-remove",
     "chrome.storage.StorageArea.set": "storage.html#method-StorageArea-set",
     "chrome.storage.onChanged": "storage.html#event-onChanged",
     "chrome.tabs.captureVisibleTab": "tabs.html#method-captureVisibleTab",
     "chrome.tabs.connect": "tabs.html#method-connect",
     "chrome.tabs.create": "tabs.html#method-create",
     "chrome.tabs.detectLanguage": "tabs.html#method-detectLanguage",
@@ skipping 773 matching lines @@
     },
     {
       "api_calls": [
         "chrome.alarms.create",
         "chrome.alarms.onAlarm",
         "chrome.bookmarks.onRemoved",
         "chrome.browserAction.onClicked",
         "chrome.browserAction.setBadgeText",
         "chrome.declarativeWebRequest.onRequest",
         "chrome.experimental.keybinding.onCommand",
-        "chrome.experimental.runtime.onBackgroundPageUnloadingSoon",
-        "chrome.experimental.runtime.onInstalled",
         "chrome.extension.onMessage",
         "chrome.extension.sendMessage",
+        "chrome.runtime.onBackgroundPageUnloadingSoon",
+        "chrome.runtime.onInstalled",
         "chrome.tabs.create",
         "chrome.tabs.executeScript",
         "chrome.tabs.query",
         "chrome.tabs.sendMessage"
       ],
       "crx_path": null,
       "description": "Demonstrates usage and features of the event page",
       "features": [
         "alarms",
         "background_page",
         "bookmarks",
         "browser_action",
         "experimental",
         "keybinding",
         "tabs"
       ],
       "icon": null,
       "id": "26115f23aef245d6757587e3e517bbe4b3bc55fe",
       "name": "Event Page Example",
       "packaged_app": false,
       "path": "examples/api/eventPage/basic/",
       "protocols": [
         "http://"
       ],
-      "search_string": "EVENT PAGE EXAMPLE DEMONSTRATES USAGE AND FEATURES OF THE EVENT PAGE ALARMS BACKGROUND_PAGE BOOKMARKS BROWSER_ACTION EXPERIMENTAL KEYBINDING TABS CHROME.ALARMS.CREATE CHROME.ALARMS.ONALARM CHROME.BOOKMARKS.ONREMOVED CHROME.BROWSERACTION.ONCLICKED CHROME.BROWSERACTION.SETBADGETEXT CHROME.DECLARATIVEWEBREQUEST.ONREQUEST CHROME.EXPERIMENTAL.KEYBINDING.ONCOMMAND CHROME.EXPERIMENTAL.RUNTIME.ONBACKGROUNDPAGEUNLOADINGSOON CHROME.EXPERIMENTAL.RUNTIME.ONINSTALLED CHROME.EXTENSION.ONMESSAGE CHROME.EXTENSION.SENDMESSAGE CHROME.TABS.CREATE CHROME.TABS.EXECUTESCRIPT CHROME.TABS.QUERY CHROME.TABS.SENDMESSAGE",
+      "search_string": "EVENT PAGE EXAMPLE DEMONSTRATES USAGE AND FEATURES OF THE EVENT PAGE ALARMS BACKGROUND_PAGE BOOKMARKS BROWSER_ACTION EXPERIMENTAL KEYBINDING TABS CHROME.ALARMS.CREATE CHROME.ALARMS.ONALARM CHROME.BOOKMARKS.ONREMOVED CHROME.BROWSERACTION.ONCLICKED CHROME.BROWSERACTION.SETBADGETEXT CHROME.DECLARATIVEWEBREQUEST.ONREQUEST CHROME.EXPERIMENTAL.KEYBINDING.ONCOMMAND CHROME.EXTENSION.ONMESSAGE CHROME.EXTENSION.SENDMESSAGE CHROME.RUNTIME.ONBACKGROUNDPAGEUNLOADINGSOON CHROME.RUNTIME.ONINSTALLED CHROME.TABS.CREATE CHROME.TABS.EXECUTESCRIPT CHROME.TABS.QUERY CHROME.TABS.SENDMESSAGE",
       "source_files": [
         "background.js",
         "content.js",
         "manifest.json"
       ],
-      "source_hash": "38978d01b1ba2d4c52e6dcb7b279c921d3c494c1",
+      "source_hash": "1fdea1f122a967980955e3f644e7563c1d435c61",
       "zip_path": "examples/api/eventPage/basic.zip"
     },
     {
       "api_calls": [],
       "crx_path": null,
       "description": "A sample extension which uses Google Analytics to track usage.",
       "features": [
         "browser_action"
       ],
       "icon": "analytics-extension-icon-128.png",
@@ skipping 1581 matching lines @@
         "manifest.json",
         "popup.html",
         "popup.js",
         "sample.css"
       ],
       "source_hash": "8e51dc3a9577065d22ce92f3c838edc5ceaf4e65",
       "zip_path": "examples/api/extension/isAllowedAccess.zip"
     }
   ]
 }