Put some plug-ins behind an infobar, where they have:...

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
===================================================================
--- chrome/app/generated_resources.grd	(revision 72707)
+++ chrome/app/generated_resources.grd	(working copy)
@@ -4165,6 +4165,9 @@
       <message name="IDS_PLUGIN_OUTDATED" desc="The placeholder text for an outdated disabled plug-in.">
         The <ph name="PLUGIN_NAME">$1<ex>Flash</ex></ph> plug-in is out of date.
       </message>
+      <message name="IDS_PLUGIN_NOT_AUTHORIZED" desc="The placeholder text for a plug-in that requires user permission to run.">
+        The <ph name="PLUGIN_NAME">$1<ex>Java</ex></ph> plug-in needs your permission to run.
+      </message>
 
       <!-- Session Crashed Info Bar-->
       <message name="IDS_SESSION_CRASHED_VIEW_RESTORE_BUTTON" desc="Title of the restore button in the session crashed view.">
@@ -7648,6 +7651,9 @@
       <message name="IDS_PLUGIN_ENABLE_TEMPORARILY" desc="Info Bar button to run a blocked outdated plugin">
         Run this time
       </message>
+      <message name="IDS_PLUGIN_ENABLE_ALWAYS" desc="Info Bar button to always run blocked plugins for this web site">
+        Always run on this site
+      </message>
       <message name="IDS_PLUGIN_CRASHED_PROMPT" desc="Info Bar message to notify about a crashed plugin">
         The following plug-in has crashed: <ph name="PLUGIN_NAME">$1<ex>Shockwave</ex></ph>
       </message>