Tests for WebUI Hung Renderer Dialog

chrome/browser/ui/webui/hung_renderer_dialog.h

Index: chrome/browser/ui/webui/hung_renderer_dialog.h
diff --git a/chrome/browser/ui/webui/hung_renderer_dialog.h b/chrome/browser/ui/webui/hung_renderer_dialog.h
index e26a8a13a4a92d438076b05fd3ac9b31c4f8cc3d..c5e52cf8f4fe3db31295be873bccdaae1f2612ef 100644
--- a/chrome/browser/ui/webui/hung_renderer_dialog.h
+++ b/chrome/browser/ui/webui/hung_renderer_dialog.h
@@ -20,13 +20,13 @@ class HungRendererDialogHandler;
 class HungRendererDialog : private HtmlDialogUIDelegate {
  public:
   // Shows a hung renderer dialog.
-  static void ShowHungRendererDialog(TabContents* contents);
+  static void ShowHungRendererDialog(TabContents* contents, bool is_enabled);
 
   // Hides a hung renderer dialog.
   static void HideHungRendererDialog(TabContents* contents);
 
  private:
-  HungRendererDialog();
+  explicit HungRendererDialog(bool is_enabled);
 
   // Shows the hung renderer dialog.
   void ShowDialog(TabContents* contents);
@@ -53,6 +53,12 @@ class HungRendererDialog : private HtmlDialogUIDelegate {
   // The dialog handler.
   HungRendererDialogHandler* handler_;
 
+  // A safety switch that must be enabled to allow actual killing of processes
+  // or restarting of the hang timer.  This is necessary so that tests can
+  // create a disabled version of this dialog that won't kill processes or
+  // restart timers when the dialog closes at the end of the test.
+  bool is_enabled_;
+
   // The dialog window.
   gfx::NativeWindow window_;