[content shell] simplify plugin whitelist.

We only need the webkit test plugin during layout tests

BUG=242291
R=abarth@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15820007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202545 0039d316-1c4b-4281-b951-d872f2087c98

content/shell/shell_plugin_service_filter.cc

@@ -20,11 +20,7 @@ bool ShellPluginServiceFilter::IsPluginAvailable(
     const GURL& url,
     const GURL& policy_url,
     webkit::WebPluginInfo* plugin) {
-  if (plugin->name == ASCIIToUTF16("WebKit Test PlugIn") ||
-      plugin->name == ASCIIToUTF16("NPAPI Test Plugin")) {
-    return true;
-  }
-  return false;
+  return plugin->name == ASCIIToUTF16("WebKit Test PlugIn");
 }
 
 bool ShellPluginServiceFilter::CanLoadPlugin(int render_process_id,