<webview>, <appview> and <extensionoptions> can run in a detached state.

chrome/browser/apps/guest_view/web_view_browsertest.cc

Index: chrome/browser/apps/guest_view/web_view_browsertest.cc
diff --git a/chrome/browser/apps/guest_view/web_view_browsertest.cc b/chrome/browser/apps/guest_view/web_view_browsertest.cc
index 79de391adec4fcdf7cfad34c67d5fae8a312aedb..b875bcc37ad881cc23b14ab824408a20eff782df 100644
--- a/chrome/browser/apps/guest_view/web_view_browsertest.cc
+++ b/chrome/browser/apps/guest_view/web_view_browsertest.cc
@@ -844,7 +844,7 @@ IN_PROC_BROWSER_TEST_F(WebViewTest, AutoSize) {
 }
 
 // Test for http://crbug.com/419611.
-IN_PROC_BROWSER_TEST_F(WebViewTest, DISABLED_DisplayNoneSetSrc) {
+IN_PROC_BROWSER_TEST_F(WebViewTest, DisplayNoneSetSrc) {
   LoadAndLaunchPlatformApp("web_view/display_none_set_src",
                            "WebViewTest.LAUNCHED");
   // Navigate the guest while it's in "display: none" state.
@@ -1089,7 +1089,7 @@ IN_PROC_BROWSER_TEST_F(WebViewTest, Shim_TestContentLoadEvent) {
 
 // TODO(fsamuel): Enable this test once <webview> can run in a detached state.
 IN_PROC_BROWSER_TEST_F(WebViewTest,
-                       DISABLED_Shim_TestContentLoadEventWithDisplayNone) {
+                       Shim_TestContentLoadEventWithDisplayNone) {
   TestHelper("testContentLoadEventWithDisplayNone",
              "web_view/shim",
              NO_TEST_SERVER);