Attempting to fix the pure virtual function call crash in chrome frame test runs. It appears to be caused by a race condition during disconnecting from chrome frame and receiving a callback from IE (Chrome Frame).
Attempting to fix the pure virtual function call crash in chrome frame test runs. It appears to be caused by a race
condition during disconnecting from chrome frame and receiving a callback from IE (Chrome Frame).

Added checks to detect and work around this issue.

Should fix http://code.google.com/p/chromium/issues/detail?id=41980

Bug=41980

Review URL: http://codereview.chromium.org/1703003

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@45233 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser