Calls to rph updating existing handlers are ignored.

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index ad7b7cda8ababdacda9160f46bc92d80a5ab7cd0..d4b217b00ea7c3352014f40f2434804daa271f71 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -2500,15 +2500,8 @@ void Browser::RegisterProtocolHandlerHelper(TabContents* tab,
 
   ProtocolHandlerRegistry* registry =
       tcw->profile()->GetProtocolHandlerRegistry();
-  if (!registry->enabled() || registry->HasRegisteredEquivalent(handler) ||
-      registry->HasIgnoredEquivalent(handler))
-    return;
 
-  if (!handler.IsEmpty() &&
-      registry->CanSchemeBeOverridden(handler.protocol())) {
-    // We don't need to show an infobar if we can silently update the handler
-    if (registry->AttemptReplace(handler))
-      return;
+  if (!registry->SilentlyHandleRegisterHandlerRequest(handler)) {
     UserMetrics::RecordAction(
         UserMetricsAction("RegisterProtocolHandler.InfoBar_Shown"));
     InfoBarTabHelper* infobar_helper = tcw->infobar_tab_helper();