Add kAccessibilityFocusFallsbackToWidget property

chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc

 // Copyright 2014 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 "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/accelerators/accelerator_table.h"
 #include "ash/common/accessibility_types.h"
 #include "ash/common/material_design/material_design_controller.h"
@@ skipping 482 matching lines @@
 IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, OverviewMode) {
   EnableChromeVox();
 
   EXPECT_TRUE(PerformAcceleratorAction(ash::TOGGLE_OVERVIEW));
   while (true) {
     std::string utterance = speech_monitor_.GetNextUtterance();
     if (base::MatchPattern(utterance, "Edit text"))
       break;
   }
 
+  EXPECT_EQ(", window", speech_monitor_.GetNextUtterance());

[dmazzoni, 2016/11/29 17:50:17]

Instead of adding this expectation, which may just
break again soon, change the next line to a loop
that loops until "Entered window overview mode"
is matched.

[yawano, 2016/11/30 10:55:54]

Done.

   EXPECT_EQ("Entered window overview mode", speech_monitor_.GetNextUtterance());
 
   SendKeyPress(ui::VKEY_TAB);
   // On Chrome OS accessibility title for tabbed browser windows contains app
   // name ("Chrome" or "Chromium") in overview mode.
   while (true) {
     std::string utterance = speech_monitor_.GetNextUtterance();
     if (base::MatchPattern(utterance, "Chromium - about:blank"))
       break;
   }
@@ skipping 14 matching lines @@
       GURL("data:text/html;charset=utf-8,<button autofocus>Click me</button>"));
   while (true) {
     std::string utterance = speech_monitor_.GetNextUtterance();
     if (utterance == "Click me")
       break;
   }
   EXPECT_EQ("Button", speech_monitor_.GetNextUtterance());
 
   // Press Search+/ to enter ChromeVox's "find in page".
   SendKeyPressWithSearch(ui::VKEY_OEM_2);
+  EXPECT_EQ("webView", speech_monitor_.GetNextUtterance());

[dmazzoni, 2016/11/29 17:50:17]

Same, let's get rid of this expectation and just loop
until "Find in page" is heard

[yawano, 2016/11/30 10:55:54]

Done.

   EXPECT_EQ(", window", speech_monitor_.GetNextUtterance());
-  EXPECT_EQ("webView", speech_monitor_.GetNextUtterance());
   EXPECT_EQ("Find in page.", speech_monitor_.GetNextUtterance());
 }
 
 #if defined(MEMORY_SANITIZER)
 // Fails under MemorySanitizer: http://crbug.com/472125
 #define MAYBE_ChromeVoxNavigateAndSelect DISABLED_ChromeVoxNavigateAndSelect
 #else
 #define MAYBE_ChromeVoxNavigateAndSelect ChromeVoxNavigateAndSelect
 #endif
 IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, MAYBE_ChromeVoxNavigateAndSelect) {
@@ skipping 207 matching lines @@
   ASSERT_TRUE(ui_test_utils::SendKeyPressToWindowSync(
       window, ui::VKEY_TAB, false, true /*shift*/, false, false));
   while (speech_monitor_.GetNextUtterance() != "Select your language:") {
   }
   EXPECT_EQ("English ( United States)", speech_monitor_.GetNextUtterance());
   EXPECT_TRUE(base::MatchPattern(speech_monitor_.GetNextUtterance(),
                                  "Combo box * of *"));
 }
 
 }  // namespace chromeos