Replace the struct workaround for forward-declaring ChromeViewHostMsg_GetPluginInfo_Status with a p…

chrome/browser/plugins/plugin_info_message_filter.h

Index: chrome/browser/plugins/plugin_info_message_filter.h
diff --git a/chrome/browser/plugins/plugin_info_message_filter.h b/chrome/browser/plugins/plugin_info_message_filter.h
index a9d29a94e88f68a10dabb75c62322fc6577f44ad..36eeaf57024a2685a4ff8cc46d317b41e52141b1 100644
--- a/chrome/browser/plugins/plugin_info_message_filter.h
+++ b/chrome/browser/plugins/plugin_info_message_filter.h
@@ -18,7 +18,7 @@
 #include "content/public/browser/browser_message_filter.h"
 
 struct ChromeViewHostMsg_GetPluginInfo_Output;
-struct ChromeViewHostMsg_GetPluginInfo_Status;
+enum class ChromeViewHostMsg_GetPluginInfo_Status;
 class GURL;
 class HostContentSettingsMap;
 class PluginFinder;
@@ -66,7 +66,7 @@ class PluginInfoMessageFilter : public content::BrowserMessageFilter {
                                  ContentSetting* setting,
                                  bool* is_default,
                                  bool* is_managed) const;
-    void MaybeGrantAccess(const ChromeViewHostMsg_GetPluginInfo_Status& status,
+    void MaybeGrantAccess(ChromeViewHostMsg_GetPluginInfo_Status status,
                           const base::FilePath& path) const;
     bool IsPluginEnabled(const content::WebPluginInfo& plugin) const;