Make ToggleImageButton into an accessible toggle button.

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/accelerators/accelerator_controller.h"
 #include "ash/accelerators/accelerator_table.h"
 #include "ash/common/accessibility_types.h"
 #include "ash/common/system/tray/system_tray.h"
@@ skipping 649 matching lines @@
   ash::SystemTray* tray = ash::Shell::GetInstance()->GetPrimarySystemTray();
   tray->NotifyAccessibilityEvent(ui::AX_EVENT_HOVER, true);
 
   EXPECT_EQ("Status tray,", speech_monitor_.GetNextUtterance());
   EXPECT_TRUE(base::MatchPattern(speech_monitor_.GetNextUtterance(), "time*,"));
   EXPECT_TRUE(
       base::MatchPattern(speech_monitor_.GetNextUtterance(), "Battery*"));
   EXPECT_EQ("Button", speech_monitor_.GetNextUtterance());
 }
 
+IN_PROC_BROWSER_TEST_F(LoggedInSpokenFeedbackTest, NavigateNotificationCenter) {
+  EnableChromeVox();
+
+  EXPECT_TRUE(PerformAcceleratorAction(ash::SHOW_MESSAGE_CENTER_BUBBLE));
+
+  // Wait for it to say "Notification Center, window".
+  while ("Notification Center, window" != speech_monitor_.GetNextUtterance()) {
+  }
+
+  // Tab until we get to the Do Not Disturb button.
+  SendKeyPress(ui::VKEY_TAB);
+  do {

[dmazzoni, 2016/07/21 17:05:57]

This looks incomplete?

+    std::string ut = speech_monitor_.GetNextUtterance();
+
+}
+
 //
 // Spoken feedback tests that run only in guest mode.
 //
 
 class GuestSpokenFeedbackTest : public LoggedInSpokenFeedbackTest {
  protected:
   GuestSpokenFeedbackTest() {}
   ~GuestSpokenFeedbackTest() override {}
 
   void SetUpCommandLine(base::CommandLine* command_line) override {
@@ skipping 74 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