[Re-landing] Migrate external protocol prefs from local state to profiles

chrome/browser/ui/external_protocol_dialog_delegate.cc

Index: chrome/browser/ui/external_protocol_dialog_delegate.cc
diff --git a/chrome/browser/ui/external_protocol_dialog_delegate.cc b/chrome/browser/ui/external_protocol_dialog_delegate.cc
index 20c662fd7872ba0a391b06e51ce28d1c877b9fdb..b1f9b9c78515e2ed449977f2d84fbc75fd11dad1 100644
--- a/chrome/browser/ui/external_protocol_dialog_delegate.cc
+++ b/chrome/browser/ui/external_protocol_dialog_delegate.cc
@@ -75,7 +75,13 @@ void ExternalProtocolDialogDelegate::DoAccept(const GURL& url,
 void ExternalProtocolDialogDelegate::DoCancel(const GURL& url,
                                               bool dont_block) const {
   if (dont_block) {
+    content::WebContents* web_contents = tab_util::GetWebContentsByID(
+        render_process_host_id_, render_view_routing_id_);
+    Profile* profile =
+        Profile::FromBrowserContext(web_contents->GetBrowserContext());
+
     ExternalProtocolHandler::SetBlockState(url.scheme(),
-                                           ExternalProtocolHandler::BLOCK);
+                                           ExternalProtocolHandler::BLOCK,
+                                           profile);
   }
 }