Implement restart-required message on Linux.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 6f0950ee21f02f21eb09159fc1c96a336dc1c3a6..e70b1dd5a80f256bceba2ef931b7ac96e88ffed0 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -31,6 +31,7 @@
 #include "chrome/common/render_messages.h"
 #include "chrome/common/secure_origin_whitelist.h"
 #include "chrome/common/url_constants.h"
+#include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/grit/locale_settings.h"
 #include "chrome/grit/renderer_resources.h"
@@ -874,6 +875,13 @@ WebPlugin* ChromeContentRendererClient::CreatePlugin(
             identifier));
         break;
       }
+      case ChromeViewHostMsg_GetPluginInfo_Status::kRestartRequired: {
+        placeholder = create_blocked_plugin(
+            IDR_BLOCKED_PLUGIN_HTML,
+            l10n_util::GetStringFUTF16(IDS_PLUGIN_RESTART_REQUIRED,
+                                       group_name));
+        break;
+      }
     }
   }
   placeholder->SetStatus(status);