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

chrome/browser/chromeos/options/network_config_view.cc

Index: chrome/browser/chromeos/options/network_config_view.cc
diff --git a/chrome/browser/chromeos/options/network_config_view.cc b/chrome/browser/chromeos/options/network_config_view.cc
index 50446a668cad1c24c50f4928ef55734d4e4827ce..2061ea8b7398482c22454d7c2a2ac22ecb84ae21 100644
--- a/chrome/browser/chromeos/options/network_config_view.cc
+++ b/chrome/browser/chromeos/options/network_config_view.cc
@@ -19,6 +19,7 @@
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/host_desktop.h"
+#include "chrome/browser/ui/views/constrained_window_views.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
@@ -252,8 +253,13 @@ void NetworkConfigView::ShowDialog(gfx::NativeWindow parent) {
     parent = GetDialogParent();
   // Failed connections may result in a pop-up with no natural parent window,
   // so provide a fallback context on the active display.
-  gfx::NativeWindow context = parent ? NULL : ash::Shell::GetActiveRootWindow();
-  Widget* window = DialogDelegate::CreateDialogWidget(this, context, parent);
+  Widget* window = NULL;
+  if (parent == NULL) {
+    window = DialogDelegate::CreateDialogWidget(
+        this, ash::Shell::GetActiveRootWindow(), parent);
+  } else {
+    window = CreateBrowserModalDialogViews(this, parent);
+  }
   window->SetAlwaysOnTop(true);
   window->Show();
 }