mash: Introduce ShowWebDialogWithContainer for webui dialogs

chrome/browser/chromeos/set_time_dialog.cc

Index: chrome/browser/chromeos/set_time_dialog.cc
diff --git a/chrome/browser/chromeos/set_time_dialog.cc b/chrome/browser/chromeos/set_time_dialog.cc
index 62ceebba9b5873b7c7fc029741710c7adf243f61..de180fca593b3a165d3c82bfa2aa3be74ea8ecd7 100644
--- a/chrome/browser/chromeos/set_time_dialog.cc
+++ b/chrome/browser/chromeos/set_time_dialog.cc
@@ -4,8 +4,9 @@
 
 #include "chrome/browser/chromeos/set_time_dialog.h"
 
+#include "ash/public/cpp/shell_window_ids.h"
 #include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/browser/ui/browser_dialogs.h"
+#include "chrome/browser/ui/ash/web_dialog_util.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/user_metrics.h"
 #include "ui/gfx/geometry/size.h"
@@ -20,14 +21,26 @@ namespace {
 const int kDefaultWidth = 490;
 const int kDefaultHeight = 235;
 
+void ShowDialog(gfx::NativeWindow parent, int container_id) {
+  DCHECK(parent || container_id != ash::kShellWindowId_Invalid);
+  content::RecordAction(base::UserMetricsAction("Options_SetTimeDialog_Show"));
+  chrome::ShowWebDialogWithContainer(parent, container_id,
+                                     ProfileManager::GetActiveUserProfile(),
+                                     new SetTimeDialog());
+}
+
 }  // namespace
 
 // static
-void SetTimeDialog::ShowDialog(gfx::NativeWindow owning_window) {
-  content::RecordAction(base::UserMetricsAction("Options_SetTimeDialog_Show"));
-  chrome::ShowWebDialog(owning_window,
-                        ProfileManager::GetActiveUserProfile(),
-                        new SetTimeDialog());
+void SetTimeDialog::ShowDialogInParent(gfx::NativeWindow parent) {
+  DCHECK(parent);
+  ShowDialog(parent, ash::kShellWindowId_Invalid);
+}
+
+// static
+void SetTimeDialog::ShowDialogInContainer(int container_id) {
+  DCHECK(container_id != ash::kShellWindowId_Invalid);
+  ShowDialog(nullptr, container_id);
 }
 
 SetTimeDialog::SetTimeDialog() {