Factor out uses of WebContentsModalDialog interface functions from WebContentsModalDialogManager

chrome/browser/ui/native_web_contents_modal_dialog_manager.h

Index: chrome/browser/ui/native_web_contents_modal_dialog_manager.h
diff --git a/chrome/browser/ui/native_web_contents_modal_dialog_manager.h b/chrome/browser/ui/native_web_contents_modal_dialog_manager.h
index 684bfc7cb9a61e1bc7f209b42e6cbf60d8344169..a769246faaee4cf1b39a3eecd313a409c5ca2b5c 100644
--- a/chrome/browser/ui/native_web_contents_modal_dialog_manager.h
+++ b/chrome/browser/ui/native_web_contents_modal_dialog_manager.h
@@ -33,9 +33,19 @@ class NativeWebContentsModalDialogManager {
   // notify the manager.
   virtual void ManageDialog(NativeWebContentsModalDialog dialog) = 0;
 
+  // Makes the web contents modal dialog visible. Only one web contents modal
+  // dialog is shown at a time per tab.
+  virtual void ShowDialog(NativeWebContentsModalDialog dialog) = 0;
+
   // Closes the web contents modal dialog.
   virtual void CloseDialog(NativeWebContentsModalDialog dialog) = 0;
 
+  // Sets focus on the web contents modal dialog.
+  virtual void FocusDialog(NativeWebContentsModalDialog dialog) = 0;
+
+  // Runs a pulse animation for the web contents modal dialog.
+  virtual void PulseDialog(NativeWebContentsModalDialog dialog) = 0;
+
  protected:
   NativeWebContentsModalDialogManager() {}