Mark WebViewTest.InterstitialTeardownOnBrowserShutdown flaky on all platforms

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 1523 matching lines @@
 IN_PROC_BROWSER_TEST_P(WebViewTest, InterstitialTeardown) {
   InterstitialTeardownTestHelper();
 
   // Now close the app while interstitial page being shown in guest.
   extensions::AppWindow* window = GetFirstAppWindow();
   window->GetBaseWindow()->Close();
 }
 
 // This test makes sure the browser process does not crash if browser is shut
 // down while an interstitial page is being shown in guest.
-// Flaky on Windows. http://crbug.com/619508.
-#if defined(OS_WIN)
-#define MAYBE_InterstitialTeardownOnBrowserShutdown \
-    DISABLED_InterstitialTeardownOnBrowserShutdown
-#else
-#define MAYBE_InterstitialTeardownOnBrowserShutdown \
-    InterstitialTeardownOnBrowserShutdown
-#endif
+// Flaky. http://crbug.com/627962.
 IN_PROC_BROWSER_TEST_P(WebViewTest,
-                       MAYBE_InterstitialTeardownOnBrowserShutdown) {
+                       DISABLED_InterstitialTeardownOnBrowserShutdown) {
   InterstitialTeardownTestHelper();
 
   // Now close the app while interstitial page being shown in guest.
   extensions::AppWindow* window = GetFirstAppWindow();
   window->GetBaseWindow()->Close();
 
   // InterstitialPage is not destroyed immediately, so the
   // RenderWidgetHostViewGuest for it is still there, closing all
   // renderer processes will cause the RWHVGuest's RenderProcessGone()
   // shutdown path to be exercised.
@@ skipping 2112 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