Remove WebContentsDelegate::SwappedOut

content/public/browser/web_contents_delegate.h

Index: content/public/browser/web_contents_delegate.h
diff --git a/content/public/browser/web_contents_delegate.h b/content/public/browser/web_contents_delegate.h
index 95d1a52eed9028f506d633266b8f049086dcf49f..74b56e15f708d78e8cf0fdf34ff2417bf4ad8632 100644
--- a/content/public/browser/web_contents_delegate.h
+++ b/content/public/browser/web_contents_delegate.h
@@ -141,10 +141,6 @@ class CONTENT_EXPORT WebContentsDelegate {
   // it needs to do.
   virtual void CloseContents(WebContents* source) {}
 
-  // Informs the delegate that the underlying RenderViewHost has been swapped
-  // out so it can perform any cleanup necessary.
-  virtual void SwappedOut(WebContents* source) {}
-
   // Request the delegate to move this WebContents to the specified position
   // in screen coordinates.
   virtual void MoveContents(WebContents* source, const gfx::Rect& pos) {}