Implement unregisterProtocolHandler()

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 d8abe54a9b8395a664840d86570067995555bff3..a3ffbee801dc5d69b236ec3d1c21c1eb16702ac8 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -1664,6 +1664,23 @@ void Browser::RegisterProtocolHandler(WebContents* web_contents,
   }
 }
 
+void Browser::UnregisterProtocolHandler(WebContents* web_contents,
+                                        const std::string& protocol,
+                                        const GURL& url,
+                                        bool user_gesture) {

[kenrb, 2014/07/11 14:38:37]

This appears to be an unused argument passed from the renderer process. Is this
going to be used in future or can it be removed?

+  Profile* profile =
+      Profile::FromBrowserContext(web_contents->GetBrowserContext());
+  if (profile->IsOffTheRecord())
+    return;
+
+  ProtocolHandler handler =
+      ProtocolHandler::CreateProtocolHandler(protocol, url);
+
+  ProtocolHandlerRegistry* registry =
+      ProtocolHandlerRegistryFactory::GetForProfile(profile);
+  registry->RemoveHandler(handler);
+}
+
 void Browser::UpdatePreferredSize(WebContents* source,
                                   const gfx::Size& pref_size) {
   window_->UpdatePreferredSize(source, pref_size);