[Extensions] Update installed bubble for extensions with synthesized actions

chrome/common/extensions/manifest_handlers/extension_action_handler.cc

Index: chrome/common/extensions/manifest_handlers/extension_action_handler.cc
diff --git a/chrome/common/extensions/manifest_handlers/extension_action_handler.cc b/chrome/common/extensions/manifest_handlers/extension_action_handler.cc
index 15682c61dd2886a7c3d28c707934623b1b20d91d..3d2a465325ccc584c53978f9e99b06b5ee8ce514 100644
--- a/chrome/common/extensions/manifest_handlers/extension_action_handler.cc
+++ b/chrome/common/extensions/manifest_handlers/extension_action_handler.cc
@@ -74,7 +74,9 @@ bool ExtensionActionHandler::Parse(Extension* extension,
 
     // Set an empty page action. We use a page action (instead of a browser
     // action) because the action should not be seen as enabled on every page.
-    ActionInfo::SetPageActionInfo(extension, new ActionInfo());
+    scoped_ptr<ActionInfo> action_info(new ActionInfo());
+    action_info->synthesized = true;
+    ActionInfo::SetPageActionInfo(extension, action_info.release());
   }
 
   return true;