Not running the following Chromeframe tests on IE9. This will enable the builder to now run

the tests to completion and hopefully turn green.

1. CF_DownloadFileFromPost. This test expects to see a File save dialog. On IE9
   the prompt to save the file is displayed as a link on the frame window.

2. WidgetModeIE_CFInstancePost, WidgetModeIE_CFInstanceRPC, WidgetModeIE_CFInstanceRPCInterna
   These tests fail on IE9. Needs more investigation.

TBR=amit


Review URL: http://codereview.chromium.org/4998003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@66158 0039d316-1c4b-4281-b951-d872f2087c98