Switch GlobalErrorBubbleView to a BubbleDialogDelegate.

ui/views/window/dialog_client_view.cc

Index: ui/views/window/dialog_client_view.cc
diff --git a/ui/views/window/dialog_client_view.cc b/ui/views/window/dialog_client_view.cc
index 5b5db8b88a4ca586a446d74ad93a0a0006e5981f..62a800c138bb519c60bbd6fe74e8c2e4201fae1c 100644
--- a/ui/views/window/dialog_client_view.cc
+++ b/ui/views/window/dialog_client_view.cc
@@ -95,7 +95,7 @@ void DialogClientView::UpdateDialogButtons() {
       AddChildView(ok_button_);
     }
 
-    UpdateButton(ok_button_, ui::DIALOG_BUTTON_OK);
+    GetDialogDelegate()->UpdateButton(ok_button_, ui::DIALOG_BUTTON_OK);
   } else if (ok_button_) {
     delete ok_button_;
     ok_button_ = NULL;
@@ -107,7 +107,7 @@ void DialogClientView::UpdateDialogButtons() {
       AddChildView(cancel_button_);
     }
 
-    UpdateButton(cancel_button_, ui::DIALOG_BUTTON_CANCEL);
+    GetDialogDelegate()->UpdateButton(cancel_button_, ui::DIALOG_BUTTON_CANCEL);
   } else if (cancel_button_) {
     delete cancel_button_;
     cancel_button_ = NULL;
@@ -320,14 +320,6 @@ LabelButton* DialogClientView::CreateDialogButton(ui::DialogButton type) {
   return button;
 }
 
-void DialogClientView::UpdateButton(LabelButton* button,
-                                    ui::DialogButton type) {
-  DialogDelegate* dialog = GetDialogDelegate();
-  button->SetText(dialog->GetDialogButtonLabel(type));
-  button->SetEnabled(dialog->IsDialogButtonEnabled(type));
-  button->SetIsDefault(type == dialog->GetDefaultDialogButton());
-}
-
 int DialogClientView::GetButtonsAndExtraViewRowHeight() const {
   int extra_view_height = ShouldShow(extra_view_) ?
       extra_view_->GetPreferredSize().height() : 0;