Upstream changes made downstream to infobar_manager_impl.{cc,h}.

ios/chrome/browser/infobars/infobar_manager_impl.cc

Index: ios/chrome/browser/infobars/infobar_manager_impl.cc
diff --git a/ios/chrome/browser/infobars/infobar_manager_impl.cc b/ios/chrome/browser/infobars/infobar_manager_impl.cc
index 68902557f8d616e3bd3b2d948a6e3c095b6ca3b1..551268b8b76de86ffe642a90c7943c841a8622cb 100644
--- a/ios/chrome/browser/infobars/infobar_manager_impl.cc
+++ b/ios/chrome/browser/infobars/infobar_manager_impl.cc
@@ -78,3 +78,8 @@ void InfoBarManagerImpl::WebStateDestroyed() {
   // That was the equivalent of "delete this". This object is now destroyed;
   // returning from this function is the only safe thing to do.
 }
+
+void InfoBarManagerImpl::OpenURL(const GURL& url,
+                                 WindowOpenDisposition disposition) {
+  NOTIMPLEMENTED();
+}