Move some global feature defines to buildflags

chrome/browser/plugins/plugin_info_message_filter.cc

Index: chrome/browser/plugins/plugin_info_message_filter.cc
diff --git a/chrome/browser/plugins/plugin_info_message_filter.cc b/chrome/browser/plugins/plugin_info_message_filter.cc
index c1043375281defa789561245fa3d9432502ae97b..4e8e5f24d88257961077359700e6ad0efe341f9b 100644
--- a/chrome/browser/plugins/plugin_info_message_filter.cc
+++ b/chrome/browser/plugins/plugin_info_message_filter.cc
@@ -28,6 +28,7 @@
 #include "chrome/browser/ui/browser_otr_state.h"
 #include "chrome/common/chrome_content_client.h"
 #include "chrome/common/chrome_features.h"
+#include "chrome/common/features.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/render_messages.h"
 #include "components/component_updater/component_updater_service.h"
@@ -330,7 +331,7 @@ void PluginInfoMessageFilter::Context::DecidePluginStatus(
   DCHECK(plugin_setting != CONTENT_SETTING_DEFAULT);
   DCHECK(plugin_setting != CONTENT_SETTING_ASK);
 
-#if defined(ENABLE_PLUGIN_INSTALLATION)
+#if BUILDFLAG(ENABLE_PLUGIN_INSTALLATION)
   // Check if the plugin is outdated.
   if (plugin_status == PluginMetadata::SECURITY_STATUS_OUT_OF_DATE &&
       !allow_outdated_plugins_.GetValue()) {