about:startup - use nsAboutRedirector instead of the browser fork as it's more appropriate for a toolkit page

browser/components/about/AboutRedirector.cpp

@@ -100,8 +100,6 @@ static RedirEntry kRedirMap[] = {
   { "sync-tabs", "chrome://browser/content/aboutSyncTabs.xul",
     nsIAboutModule::ALLOW_SCRIPT },
 #endif
-  { "startup", "chrome://toolkit/content/aboutStartup.xhtml",
-    nsIAboutModule::ALLOW_SCRIPT },
   { "home", "chrome://browser/content/aboutHome.xhtml",
     nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
     nsIAboutModule::ALLOW_SCRIPT },

docshell/base/nsAboutRedirector.cpp

@@ -91,6 +91,8 @@ static RedirEntry kRedirMap[] = {
     { "addons", "chrome://mozapps/content/extensions/extensions.xul",
       nsIAboutModule::ALLOW_SCRIPT },
     { "support", "chrome://global/content/aboutSupport.xhtml",
+      nsIAboutModule::ALLOW_SCRIPT },
+    { "startup", "chrome://global/content/aboutStartup.xhtml",
       nsIAboutModule::ALLOW_SCRIPT }
 };
 static const int kRedirTotal = NS_ARRAY_LENGTH(kRedirMap);

docshell/build/nsDocShellModule.cpp

@@ -186,6 +186,7 @@ const mozilla::Module::ContractIDEntry kDocShellContracts[] = {
   { NS_ABOUT_MODULE_CONTRACTID_PREFIX "memory", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
   { NS_ABOUT_MODULE_CONTRACTID_PREFIX "addons", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
   { NS_ABOUT_MODULE_CONTRACTID_PREFIX "support", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
+  { NS_ABOUT_MODULE_CONTRACTID_PREFIX "startup", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
   { NS_URI_LOADER_CONTRACTID, &kNS_URI_LOADER_CID },
   { NS_DOCUMENTLOADER_SERVICE_CONTRACTID, &kNS_DOCUMENTLOADER_SERVICE_CID },
   { NS_EXTERNALHELPERAPPSERVICE_CONTRACTID, &kNS_EXTERNALHELPERAPPSERVICE_CID },