Stop using UIPasteboardChangedNotification.

components/open_from_clipboard/clipboard_recent_content.h

Index: components/open_from_clipboard/clipboard_recent_content.h
diff --git a/components/open_from_clipboard/clipboard_recent_content.h b/components/open_from_clipboard/clipboard_recent_content.h
index 2aee470615d456028cae9572df04f1f10d86e14f..46e3449c3055a909c4527437c74a6a1650c7868b 100644
--- a/components/open_from_clipboard/clipboard_recent_content.h
+++ b/components/open_from_clipboard/clipboard_recent_content.h
@@ -31,10 +31,7 @@ class ClipboardRecentContent {
   // Returns true if the clipboard contains a recent URL that has not been
   // supressed, and copies it in |url|. Otherwise, returns false. |url| must not
   // be null.
-  virtual bool GetRecentURLFromClipboard(GURL* url) const = 0;
-
-  // Reports that the URL contained in the pasteboard was displayed.
-  virtual void RecentURLDisplayed() = 0;
+  virtual bool GetRecentURLFromClipboard(GURL* url) = 0;
 
   // Returns how old the content of the clipboard is.
   virtual base::TimeDelta GetClipboardContentAge() const = 0;