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

chrome/renderer/resources/extensions/schema_generated_bindings.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This script contains privileged chrome extension related javascript APIs.
 // It is loaded by pages whose URL has the chrome-extension protocol.
 
   require('json_schema');
   require('event_bindings');
   var GetExtensionAPIDefinition =
       requireNative('apiDefinitions').GetExtensionAPIDefinition;
   var sendRequest = require('sendRequest').sendRequest;
-
+  var isDevChannel = requireNative('channel').IsDevChannel;
   var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
 
   // The object to generate the bindings for "internal" APIs in, so that
   // extensions can't directly call them (without access to chromeHidden),
   // but are still needed for internal mechanisms of extensions (e.g. events).
   //
   // This is distinct to the "*Private" APIs which are controlled via
   // having strict permissions and aren't generated *anywhere* unless needed.
   var internalAPIs = {};
   chromeHidden.internalAPIs = internalAPIs;
@@ skipping 310 matching lines @@
   function isPlatformSupported(schemaNode, platform) {
     return !schemaNode.platforms ||
         schemaNode.platforms.indexOf(platform) > -1;
   }
 
   function isManifestVersionSupported(schemaNode, manifestVersion) {
     return !schemaNode.maximumManifestVersion ||
         manifestVersion <= schemaNode.maximumManifestVersion;
   }
 
+  // Temporary hack to check if the runtime API is supported.
+  // TODO(aa): Remove when we can restrict non-permission APIs to dev-only.
+  function isRuntimeAPISupported(schemaNode) {
+    if (schemaNode.namespace == "runtime")
+      return isDevChannel();
+    return true;
+  }
+
   function isSchemaNodeSupported(schemaNode, platform, manifestVersion) {
     return isPlatformSupported(schemaNode, platform) &&
-        isManifestVersionSupported(schemaNode, manifestVersion);
+        isManifestVersionSupported(schemaNode, manifestVersion) &&
+        isRuntimeAPISupported(schemaNode);
   }
 
   chromeHidden.onLoad.addListener(function(extensionId,
                                            isExtensionProcess,
                                            isIncognitoProcess,
                                            manifestVersion) {
     var apiDefinitions = GetExtensionAPIDefinition();
 
     // Read api definitions and setup api functions in the chrome namespace.
     // TODO(rafaelw): Consider defining a json schema for an api definition
@@ skipping 226 matching lines @@
     // beginInstallWithManifest2.
     // See http://crbug.com/100242
     if (chrome.webstorePrivate) {
       chrome.webstorePrivate.beginInstallWithManifest2 =
           chrome.webstorePrivate.beginInstallWithManifest3;
     }
 
     if (chrome.test)
       chrome.test.getApiDefinitions = GetExtensionAPIDefinition;
   });