Place browser-modal dialogs like web-contents-modal dialogs.

chrome/browser/ui/views/constrained_window_views.h

Index: chrome/browser/ui/views/constrained_window_views.h
diff --git a/chrome/browser/ui/views/constrained_window_views.h b/chrome/browser/ui/views/constrained_window_views.h
index d50b51af1a447808438b9c676dc72ac5f540f94e..968c4daa95a9e5dbd6c2ea2e8db1b0513ab07497 100644
--- a/chrome/browser/ui/views/constrained_window_views.h
+++ b/chrome/browser/ui/views/constrained_window_views.h
@@ -16,6 +16,7 @@ class WebContents;
 class BrowserContext;
 }
 namespace views {
+class DialogDelegate;
 class NonClientFrameView;
 class WidgetDelegate;
 class Widget;
@@ -26,6 +27,11 @@ views::Widget* CreateWebContentsModalDialogViews(
     gfx::NativeView parent,
     web_modal::WebContentsModalDialogHost* dialog_host);
 
+// Create a widget for |dialog| that is modal to the browser window |parent|.
+// This places the dialog appropriately if |parent| is a valid browser window.
+views::Widget* CreateBrowserModalDialogViews(views::DialogDelegate* dialog,
+                                             gfx::NativeWindow parent);
+
 views::NonClientFrameView* CreateConstrainedStyleNonClientFrameView(
     views::Widget* widget,
     content::BrowserContext* browser_context);