Dismiss action in tab modal dialogs.

chrome/browser/ui/tab_modal_confirm_dialog_browsertest.h

Index: chrome/browser/ui/tab_modal_confirm_dialog_browsertest.h
diff --git a/chrome/browser/ui/tab_modal_confirm_dialog_browsertest.h b/chrome/browser/ui/tab_modal_confirm_dialog_browsertest.h
index 0c0fd15c2b30859d5eeedca20a012fd1b10150da..bb29a29c1c072650ffbc5909f776497f8d0b72e7 100644
--- a/chrome/browser/ui/tab_modal_confirm_dialog_browsertest.h
+++ b/chrome/browser/ui/tab_modal_confirm_dialog_browsertest.h
@@ -17,6 +17,7 @@ class MockTabModalConfirmDialogDelegate : public TabModalConfirmDialogDelegate {
    public:
     virtual void OnAccepted() = 0;
     virtual void OnCanceled() = 0;
+    virtual void OnClosed() = 0;
    protected:
     virtual ~Delegate() {}
   };
@@ -29,6 +30,7 @@ class MockTabModalConfirmDialogDelegate : public TabModalConfirmDialogDelegate {
 
   virtual void OnAccepted() OVERRIDE;
   virtual void OnCanceled() OVERRIDE;
+  virtual void OnClosed() OVERRIDE;
 
  private:
   Delegate* delegate_;
@@ -48,6 +50,7 @@ class TabModalConfirmDialogTest
   // MockTabModalConfirmDialogDelegate::Delegate:
   virtual void OnAccepted() OVERRIDE;
   virtual void OnCanceled() OVERRIDE;
+  virtual void OnClosed() OVERRIDE;
 
  protected:
   // Owned by |dialog_|.
@@ -58,6 +61,7 @@ class TabModalConfirmDialogTest
 
   int accepted_count_;
   int canceled_count_;
+  int closed_count_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TabModalConfirmDialogTest);