Make Smart Lock user pod icons work well with ChromeVox.

chrome/browser/signin/easy_unlock_screenlock_state_handler.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 "chrome/browser/signin/easy_unlock_screenlock_state_handler.h"
 
 #include "base/bind.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 112 matching lines @@
 
   ScreenlockBridge::UserPodCustomIconOptions icon_options;
   icon_options.SetIcon(icon);
 
   // Don't hardlock on trial run.
   if (!is_trial_run_ && HardlockOnClick(state_))
     icon_options.SetHardlockOnClick();
 
   UpdateTooltipOptions(is_trial_run_, &icon_options);
 
+  // For states without tooltips, we still need to set an accessibility label.
+  if (state_ == EasyUnlockScreenlockStateHandler::STATE_BLUETOOTH_CONNECTING) {
+    icon_options.SetAriaLabel(
+        l10n_util::GetStringUTF16(IDS_SMART_LOCK_SPINNER_ACCESSIBILITY_LABEL));
+  }
+
   screenlock_bridge_->lock_handler()->ShowUserPodCustomIcon(user_email_,
                                                             icon_options);
 }
 
 void EasyUnlockScreenlockStateHandler::SetHardlockState(
     HardlockState new_state) {
   if (hardlock_state_ == new_state)
     return;
 
   hardlock_state_ = new_state;
@@ skipping 141 matching lines @@
               IDS_EASY_UNLOCK_SCREENLOCK_USER_POD_AUTH_VALUE));
     }
   } else if (screenlock_bridge_->lock_handler()->GetAuthType(user_email_) !=
                  ScreenlockBridge::LockHandler::OFFLINE_PASSWORD) {
     screenlock_bridge_->lock_handler()->SetAuthType(
         user_email_,
         ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
         base::string16());
   }
 }