Browse gets LOAD_FAILED after a download starts

[humitos]

Steps to reproduce it:

1. Open Browse
2. Download ​this video
3. Look at the log output

Issue:

This is written into the log

** (sugar-activity:22899): CRITICAL **: void webkit_download_start(WebKitDownload*): assertion `priv->timer == NULL' failed

I added the Webkit's LoadStatus value to see what was happening:

1347309820.382559 DEBUG root: ### STATUS: <enum WEBKIT_LOAD_FAILED of type WebKitLoadStatus>

Expected behaviour:

Handle this error if something wrong is happening.

Useful link:

• ​http://webkitgtk.org/reference/webkitgtk/stable/WebKitWebFrame.html#WebKitLoadStatus

[manuq]

According to commit f96848a9 _download.start() is needed because:

        # We have to start the download to get 'total-size'
        # property. It not, 0 is returned