Mac: make save/open dialogs operate as tab-modal sheets....

chrome/browser/blocked_popup_container.h

Index: chrome/browser/blocked_popup_container.h
diff --git a/chrome/browser/blocked_popup_container.h b/chrome/browser/blocked_popup_container.h
index 781def3047d0ac68c140eda1a0a5af22aabec936..834beb2a676c0da230540320cf98ef40d370f22a 100644
--- a/chrome/browser/blocked_popup_container.h
+++ b/chrome/browser/blocked_popup_container.h
@@ -196,6 +196,9 @@ class BlockedPopupContainer : public TabContentsDelegate,
   // Ignored; BlockedPopupContainer doesn't display a URL bar.
   virtual void UpdateTargetURL(TabContents* source, const GURL& url) { }
 
+  // Ignored; BlockedPopupContainer doesn't display child windows.
+  virtual void ChildWindowsChanged(TabContents* source) { }
+
   // A number larger than the internal popup count on the Renderer; meant for
   // preventing a compromised renderer from exhausting GDI memory by spawning
   // infinite windows.