Fix WebViewTest.CloseOnLoadcommit flakiness.

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 47755747eb88ca307d76dcf0f116daf8f7736c4a..1d00e502c031ed10e6c73f881fbfe51c64aeed6c 100644
--- a/chrome/browser/apps/guest_view/web_view_browsertest.cc
+++ b/chrome/browser/apps/guest_view/web_view_browsertest.cc
@@ -1733,14 +1733,7 @@ IN_PROC_BROWSER_TEST_P(WebViewTest, IndexedDBIsolation) {
 // This test ensures that closing app window on 'loadcommit' does not crash.
 // The test launches an app with guest and closes the window on loadcommit. It
 // then launches the app window again. The process is repeated 3 times.
-// https://crbug.com/291278
-// https://crbug.com/619148
-#if defined(OS_WIN) || defined(MAC_OS_X_VERSION_10_9) || defined(OS_LINUX)
-#define MAYBE_CloseOnLoadcommit DISABLED_CloseOnLoadcommit
-#else
-#define MAYBE_CloseOnLoadcommit CloseOnLoadcommit
-#endif
-IN_PROC_BROWSER_TEST_P(WebViewTest, MAYBE_CloseOnLoadcommit) {
+IN_PROC_BROWSER_TEST_P(WebViewTest, CloseOnLoadcommit) {
   LoadAndLaunchPlatformApp("web_view/close_on_loadcommit",
                            "done-close-on-loadcommit");
 }