Convert Pass()→std::move() for iOS build.

ios/chrome/browser/infobars/infobar.mm

Index: ios/chrome/browser/infobars/infobar.mm
diff --git a/ios/chrome/browser/infobars/infobar.mm b/ios/chrome/browser/infobars/infobar.mm
index b7f7453caa5ff2f939f0c0605f702e436b5f0be8..00ae46b66429829e43f7ac4e7f724fb30f038b27 100644
--- a/ios/chrome/browser/infobars/infobar.mm
+++ b/ios/chrome/browser/infobars/infobar.mm
@@ -4,6 +4,8 @@
 
 #include "ios/chrome/browser/infobars/infobar.h"
 
+#include <utility>
+
 #include "base/logging.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
 #include "components/translate/core/browser/translate_infobar_delegate.h"
@@ -15,8 +17,7 @@ using infobars::InfoBar;
 using infobars::InfoBarDelegate;
 
 InfoBarIOS::InfoBarIOS(scoped_ptr<InfoBarDelegate> delegate)
-    : InfoBar(delegate.Pass()) {
-}
+    : InfoBar(std::move(delegate)) {}
 
 InfoBarIOS::~InfoBarIOS() {
   DCHECK(controller_);