Keep track of accessibility focus across windows.

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 <utility>
 
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/path_service.h"
@@ skipping 2015 matching lines @@
   chromeos::AccessibilityManager::Get()->EnableSpokenFeedback(
       true, ui::A11Y_NOTIFICATION_NONE);
   EXPECT_TRUE(monitor.SkipChromeVoxEnabledMessage());
 
   ASSERT_TRUE(StartEmbeddedTestServer());
   content::WebContents* guest_web_contents = LoadGuest(
       "/extensions/platform_apps/web_view/chromevox_injection/guest.html",
       "web_view/chromevox_injection");
   ASSERT_TRUE(guest_web_contents);
 
-  EXPECT_EQ("chrome vox test title", monitor.GetNextUtterance());
+  for (;;) {
+    if (monitor.GetNextUtterance() == "chrome vox test title")
+      break;
+  }
 }
 #endif
 
 // Flaky on Windows. http://crbug.com/303966
 #if defined(OS_WIN)
 #define MAYBE_TearDownTest DISABLED_TearDownTest
 #else
 #define MAYBE_TearDownTest TearDownTest
 #endif
 IN_PROC_BROWSER_TEST_P(WebViewTest, MAYBE_TearDownTest) {
@@ skipping 1065 matching lines @@
   // 4 tasks expected. The order is arbitrary.
   // Tab: about:blank,
   // Background Page: <webview> task manager test,
   // App: <webview> task manager test,
   // Webview: WebViewed test content.
   EXPECT_EQ(4U, task_manager.tasks().size());
   EXPECT_TRUE(HasExpectedGuestTask(task_manager, guest_contents));
 }
 
 #endif  // defined(ENABLE_TASK_MANAGER)