The PluginHostMsg_CancelResource message is now an async routed message. It does not need to be a sync message anymore with the stream IPC's now being async.
The PluginHostMsg_CancelResource message is now an async routed message. It does not need to be
a sync message anymore with the stream IPC's now being async.

Review URL: http://codereview.chromium.org/174500

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@24582 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