crosswalk-project/crosswalk — pull request #1144 by wuhengzhi (2013-11-19 10:38:31+00:00)
Title: [Android] Fix XWalk crash issue when call onDestroy.

The root cause is that destructor function was repeatedly executed.
In the destructor function of XWalkExtensionAndroid, call the
XWalkBrowserMainParts::UnregisterExtension, it erases the extension
and deletes it, then reentry the destructor function.

The fix is to delete the unnecessary destruction.

BUG=https://crosswalk-project.org/jira/browse/XWALK-352