Remove all traces of deprecated Get/SetReleaseTrack calls.

chrome/browser/ui/webui/help/help_handler.cc

Index: chrome/browser/ui/webui/help/help_handler.cc
diff --git a/chrome/browser/ui/webui/help/help_handler.cc b/chrome/browser/ui/webui/help/help_handler.cc
index c8fe9cd6d78a6d0bf508062b88f0a09befd29fcb..6fdc04f7a7067af9ba1d0cef33cfc5ffbcf91cd4 100644
--- a/chrome/browser/ui/webui/help/help_handler.cc
+++ b/chrome/browser/ui/webui/help/help_handler.cc
@@ -417,7 +417,7 @@ void HelpHandler::SetChannel(const ListValue* args) {
   bool is_powerwash_allowed;
   if (!args->GetString(0, &channel) ||
       !args->GetBoolean(1, &is_powerwash_allowed)) {
-    LOG(ERROR) << "Can't parse SetReleaseTrack() args";
+    LOG(ERROR) << "Can't parse SetChannel() args";
     return;
   }