Modified DialogDelegateView to be accessible

ui/views/window/dialog_delegate.cc

Index: ui/views/window/dialog_delegate.cc
diff --git a/ui/views/window/dialog_delegate.cc b/ui/views/window/dialog_delegate.cc
index 1627a8f2272c898457819b4b22237ff01646ff48..ce68914c8efa12e51bc6e2ce08cf5af075461d3e 100644
--- a/ui/views/window/dialog_delegate.cc
+++ b/ui/views/window/dialog_delegate.cc
@@ -5,6 +5,7 @@
 #include "ui/views/window/dialog_delegate.h"
 
 #include "base/logging.h"
+#include "ui/accessibility/ax_view_state.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/strings/grit/ui_strings.h"
 #include "ui/views/bubble/bubble_border.h"
@@ -238,4 +239,15 @@ View* DialogDelegateView::GetContentsView() {
   return this;
 }
 
+void DialogDelegateView::GetAccessibleState(ui::AXViewState* state) {
+  state->name = GetDialogTitle();
+  state->role = ui::AX_ROLE_DIALOG;
+}
+
+void DialogDelegateView::ViewHierarchyChanged(
+    const ViewHierarchyChangedDetails& details) {
+  if (details.is_add && details.child == this && GetWidget())
+    NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);
+}
+
 }  // namespace views