Make Smart Lock user pod icons work well with ChromeVox.

chrome/browser/signin/easy_unlock_screenlock_state_handler.cc

Index: chrome/browser/signin/easy_unlock_screenlock_state_handler.cc
diff --git a/chrome/browser/signin/easy_unlock_screenlock_state_handler.cc b/chrome/browser/signin/easy_unlock_screenlock_state_handler.cc
index 39be6848eba0fd3186103cd076145d7658b38f4d..de58476a898cf6cc39bc3661c6c184ca3ad3bb25 100644
--- a/chrome/browser/signin/easy_unlock_screenlock_state_handler.cc
+++ b/chrome/browser/signin/easy_unlock_screenlock_state_handler.cc
@@ -130,6 +130,12 @@ void EasyUnlockScreenlockStateHandler::ChangeState(State new_state) {
 
   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);
 }