Handle multiple signin_internal_uis by using a linked_ptr

chrome/browser/ui/webui/signin_internals_ui.cc

Index: chrome/browser/ui/webui/signin_internals_ui.cc
diff --git a/chrome/browser/ui/webui/signin_internals_ui.cc b/chrome/browser/ui/webui/signin_internals_ui.cc
index 6fc0b26b0c351a039a471b796fdd62c79d3e93bb..e66b79f57bfea9747e7d41e25c9f101ff9231ba6 100644
--- a/chrome/browser/ui/webui/signin_internals_ui.cc
+++ b/chrome/browser/ui/webui/signin_internals_ui.cc
@@ -85,7 +85,7 @@ void SignInInternalsUI::OnSigninStateChanged(
 }
 
 void SignInInternalsUI::OnCookieAccountsFetched(
-    scoped_ptr<base::DictionaryValue> info) {
+    linked_ptr<base::DictionaryValue> info) {
   web_ui()->CallJavascriptFunction(
       "chrome.signin.onCookieAccountsFetched.fire", *info);
 }