Fix WebViewTest.CloseOnLoadcommit flakiness.

chrome/browser/apps/guest_view/web_view_browsertest.cc

 // Copyright 2013 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.
 
 #include <queue>
 #include <set>
 #include <utility>
 
 #include "base/callback_helpers.h"
 #include "base/files/file_util.h"
@@ skipping 1715 matching lines @@
 // which the test checks to ensure proper storage isolation is enforced.
 IN_PROC_BROWSER_TEST_P(WebViewTest, IndexedDBIsolation) {
   ASSERT_TRUE(StartEmbeddedTestServer());
   ASSERT_TRUE(RunPlatformAppTest(
       "platform_apps/web_view/isolation_indexeddb")) << message_;
 }
 
 // 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");
 }
 
 IN_PROC_BROWSER_TEST_P(WebViewTest, MediaAccessAPIDeny_TestDeny) {
   MediaAccessAPIDenyTestHelper("testDeny");
 }
 
 IN_PROC_BROWSER_TEST_P(WebViewTest,
                        MediaAccessAPIDeny_TestDenyThenAllowThrows) {
@@ skipping 1842 matching lines @@
   gfx::Point embedder_origin =
       GetEmbedderWebContents()->GetContainerBounds().origin();
   guest_rect.Offset(-embedder_origin.x(), -embedder_origin.y());
 
   // Generate and send synthetic touch event.
   content::SimulateTouchPressAt(GetEmbedderWebContents(),
                                 guest_rect.CenterPoint());
   EXPECT_TRUE(aura_webview->HasFocus());
 }
 #endif