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

chrome/browser/tab_contents/tab_contents_delegate.h

Index: chrome/browser/tab_contents/tab_contents_delegate.h
diff --git a/chrome/browser/tab_contents/tab_contents_delegate.h b/chrome/browser/tab_contents/tab_contents_delegate.h
index c61a4d7b7cad69144e6cce9a0ab4f1c3dd5b1ca2..95a15ac04c833ed00d7b8e19c86a6bf77053d678 100644
--- a/chrome/browser/tab_contents/tab_contents_delegate.h
+++ b/chrome/browser/tab_contents/tab_contents_delegate.h
@@ -93,9 +93,12 @@ class TabContentsDelegate {
   // Notification that the starredness of the current URL changed.
   virtual void URLStarredChanged(TabContents* source, bool starred) = 0;
 
-  // Notification that the target URL has changed
+  // Notification that the target URL has changed.
   virtual void UpdateTargetURL(TabContents* source, const GURL& url) = 0;
 
+  // Notification that the constrained child windows have changed.
+  virtual void ChildWindowsChanged(TabContents* source) = 0;
+
   // Notification that there was a mouse event
   virtual void ContentsMouseEvent(TabContents* source, bool motion) { }