Add back onebox support for flash video

lib/onebox/engine/flash_video_onebox.rb

@@ -0,0 +1,17 @@
+module Onebox
+  module Engine
+    class FlashVideoOnebox
+      include Engine
+
+      matches_regexp /^https?:\/\/.*\.(swf|flv)$/
+
+      def to_html
+        if SiteSetting.enable_flash_video_onebox
+          "<object width='100%' height='100%'><param name='#{@url}' value='#{@url}'><embed src='#{@url}' width='100%' height='100%'></embed></object>"
+        else
+          "<a href='#{@url}'>#{@url}</a>"
+        end
+      end
+    end
+  end
+end