Update ConstrainedWindowViews appearance according to mock

chrome/browser/ui/constrained_window_tab_helper_delegate.h

Index: chrome/browser/ui/constrained_window_tab_helper_delegate.h
diff --git a/chrome/browser/ui/constrained_window_tab_helper_delegate.h b/chrome/browser/ui/constrained_window_tab_helper_delegate.h
index d671e5f2b95fe700a0cc96caad04bf456debb848..3ffb00788f2617d7d36d0302e2e1dfb4171b4729 100644
--- a/chrome/browser/ui/constrained_window_tab_helper_delegate.h
+++ b/chrome/browser/ui/constrained_window_tab_helper_delegate.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_UI_CONSTRAINED_WINDOW_TAB_HELPER_DELEGATE_H_
 
 class TabContents;
+class BrowserWindow;
 
 class ConstrainedWindowTabHelperDelegate {
  public:
@@ -21,6 +22,9 @@ class ConstrainedWindowTabHelperDelegate {
   // currently displaying dialog.
   virtual void SetTabContentBlocked(TabContents* tab_contents, bool blocked);
 
+  // Returns the window for this Browser.
+  virtual BrowserWindow* GetBrowserWindow();
+
  protected:
   virtual ~ConstrainedWindowTabHelperDelegate();
 };