Enable extension APIs for content scripts.

chrome/renderer/resources/extensions/miscellaneous_bindings.js

 // Copyright (c) 2011 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 unprivileged javascript APIs related to chrome
 // extensions.  It is loaded by any extension-related context, such as content
 // scripts or background pages.
 // See user_script_slave.cc for script that is loaded by content scripts only.
 // TODO(mpcomplete): we also load this in regular web pages, but don't need to.
 
@@ skipping 189 matching lines @@
     chromeHidden.extensionId = extensionId;
 
     chrome.extension = chrome.extension || {};
     chrome.self = chrome.extension;
 
     chrome.extension.inIncognitoTab = inIncognitoContext;  // deprecated
     chrome.extension.inIncognitoContext = inIncognitoContext;
 
     // Events for when a message channel is opened to our extension.
     chrome.extension.onConnect = new chrome.Event();
-    chrome.extension.onConnectExternal = new chrome.Event();
     chrome.extension.onRequest = new chrome.Event();
-    chrome.extension.onRequestExternal = new chrome.Event();
+
+    if (isExtensionProcess) {
+      chrome.extension.onConnectExternal = new chrome.Event();
+      chrome.extension.onRequestExternal = new chrome.Event();
+    }
 
     // Opens a message channel to the given target extension, or the current one
     // if unspecified.  Returns a Port for message passing.
     chrome.extension.connect = function(targetId_opt, connectInfo_opt) {
       var name = "";
       var targetId = extensionId;
       var nextArg = 0;
       if (typeof(arguments[nextArg]) == "string")
         targetId = arguments[nextArg++];
       if (typeof(arguments[nextArg]) == "object")
@@ skipping 49 matching lines @@
       path = String(path);
       if (!path.length || path[0] != "/")
         path = "/" + path;
       return "chrome-extension://" + extensionId + path;
     };
 
     chrome.i18n = chrome.i18n || {};
     chrome.i18n.getMessage = function(message_name, placeholders) {
       return GetL10nMessage(message_name, placeholders, extensionId);
     };
-
-    if (!isExtensionProcess)
-      setupApiStubs();
   });
 
-  var notSupportedSuffix = " can only be used in extension processes. " +
-      "See the content scripts documentation for more details.";
-
-  // Setup to throw an error message when trying to access |name| on the chrome
-  // object. The |name| can be a dot-separated path.
-  function createStub(name) {
-    var module = chrome;
-    var parts = name.split(".");
-    for (var i = 0; i < parts.length - 1; i++) {
-      var nextPart = parts[i];
-      // Make sure an object at the path so far is defined.
-      module[nextPart] = module[nextPart] || {};
-      module = module[nextPart];
-    }
-    var finalPart = parts[parts.length-1];
-    module.__defineGetter__(finalPart, function() {
-      throw new Error("chrome." + name + notSupportedSuffix);
-    });
-  }
-
-  // Sets up stubs to throw a better error message for the common case of
-  // developers trying to call extension API's that aren't allowed to be
-  // called from content scripts.
-  function setupApiStubs() {
-    // TODO(asargent) It would be nice to eventually generate this
-    // programmatically from extension_api.json (there is already a browser test
-    // that should prevent it from getting stale).
-    var privileged = [
-      // Entire namespaces.
-      "bookmarks",
-      "browserAction",
-      "chromeAuthPrivate",
-      "chromePrivate",
-      "chromeosInfoPrivate",
-      "contentSettings",
-      "contextMenus",
-      "cookies",
-      "devtools",
-      "experimental.accessibility",
-      "experimental.app",
-      "experimental.bookmarkManager",
-      "experimental.clear",
-      "experimental.clipboard",
-      "experimental.debugger",
-      "experimental.downloads",
-      "experimental.extension",
-      "experimental.infobars",
-      "experimental.input",
-      "experimental.inputUI",
-      "experimental.metrics",
-      "experimental.settings",
-      "experimental.popup",
-      "experimental.processes",
-      "experimental.privacy",
-      "experimental.rlz",
-      "experimental.savePage",
-      "experimental.sidebar",
-      "experimental.speechInput",
-      "experimental.topSites",
-      "experimental.webRequest",
-      "fileBrowserHandler",
-      "fileBrowserPrivate",
-      "fileSystem",
-      "history",
-      "idle",
-      "inputMethodPrivate",
-      "management",
-      "mediaPlayerPrivate",
-      "omnibox",
-      "pageAction",
-      "pageActions",
-      "permissions",
-      "proxy",
-      "tabs",
-      "test",
-      "tts",
-      "ttsEngine",
-      "types",
-      "webNavigation",
-      "webSocketProxyPrivate",
-      "webstorePrivate",
-      "windows",
-
-      // Functions/events/properties within the extension namespace.
-      "extension.getBackgroundPage",
-      "extension.getExtensionTabs",
-      "extension.getViews",
-      "extension.isAllowedIncognitoAccess",
-      "extension.isAllowedFileSchemeAccess",
-      "extension.onConnectExternal",
-      "extension.onRequestExternal",
-      "extension.setUpdateUrlData",
-      "i18n.getAcceptLanguages"
-    ];
-    for (var i = 0; i < privileged.length; i++) {
-      createStub(privileged[i]);
-    }
-  }
-
 })();