Changed AppListDialogContentsView to extend DialogDelegate

chrome/browser/ui/views/app_list/app_list_dialog_contents_view.cc

Index: chrome/browser/ui/views/app_list/app_list_dialog_contents_view.cc
diff --git a/chrome/browser/ui/views/app_list/app_list_dialog_contents_view.cc b/chrome/browser/ui/views/app_list/app_list_dialog_contents_view.cc
index 3378bdfe1487541b298158e0bf1c2d7010b3f277..3b1f36fed3c3d1f6045dde8da699e181b9e35e51 100644
--- a/chrome/browser/ui/views/app_list/app_list_dialog_contents_view.cc
+++ b/chrome/browser/ui/views/app_list/app_list_dialog_contents_view.cc
@@ -154,6 +154,10 @@ ui::ModalType AppListDialogContentsView::GetModalType() const {
   return ui::MODAL_TYPE_WINDOW;
 }
 
+bool AppListDialogContentsView::IsDialogBox() {
+  return true;

[tapted, 2014/07/21 00:34:07]

It looks like you'll also pick up "WS_EX_DLGMODALFRAME", documented as "The
window has a double border" - does that change the visual style?

[sashab, 2014/07/21 03:36:20]

Not at all. Enabling it doesn't seem to do anything either.

I suspect this border is hidden elsewhere, though, considering this is a
borderless window.

+}
+
 ui::AXRole AppListDialogContentsView::GetAccessibleWindowRole() const {
   return ui::AX_ROLE_DIALOG;
 }