Use a placeholder instead of the default plugin for missing plug-ins on Mac and Linux.

chrome/renderer/blocked_plugin.cc

Index: chrome/renderer/blocked_plugin.cc
diff --git a/chrome/renderer/blocked_plugin.cc b/chrome/renderer/blocked_plugin.cc
index a2296c22b8cceea0c70c3736500f743354b840ed..097b827a11a9c625bcc4f37facb12df7e640b9c7 100644
--- a/chrome/renderer/blocked_plugin.cc
+++ b/chrome/renderer/blocked_plugin.cc
@@ -56,16 +56,17 @@ static const BlockedPlugin* g_last_active_menu;
 
 BlockedPlugin::BlockedPlugin(RenderView* render_view,
                              WebFrame* frame,
-                             const webkit::npapi::PluginGroup& info,
                              const WebPluginParams& params,
                              const WebPreferences& preferences,
                              int template_id,
+                             const string16& name,
                              const string16& message,
                              bool is_blocked_for_prerendering,
                              bool allow_loading)
     : RenderViewObserver(render_view),
       frame_(frame),
       plugin_params_(params),
+      name_(name),
       is_blocked_for_prerendering_(is_blocked_for_prerendering),
       hidden_(false),
       allow_loading_(allow_loading) {
@@ -77,7 +78,6 @@ BlockedPlugin::BlockedPlugin(RenderView* render_view,
 
   DictionaryValue values;
   values.SetString("message", message);
-  name_ = info.GetGroupName();
   values.SetString("name", name_);
   values.SetString("hide", l10n_util::GetStringUTF8(IDS_PLUGIN_HIDE));