Fix the ChromeFrame BeginningTransaction unit test failures which validate the HttpNegotiate patch. On IE6/7/8 the chrome frame user agent is added to the ua section in the registry. This causes the test matcher to fail as the actual UA string contains the string chromeframe followed by the version of the dll.
Fix the ChromeFrame BeginningTransaction unit test failures which validate the HttpNegotiate
patch. On IE6/7/8 the chrome frame user agent is added to the ua section in the registry. This
causes the test matcher to fail as the actual UA string contains the string chromeframe followed
by the version of the dll.

Fix is to reduce the scope of the matcher to just look for the string chromeframe.

BUG=none
TEST=Covered by existing chrome frame BeginningTransaction test.
TBR=amit


Review URL: http://codereview.chromium.org/6045001

git-svn-id: http://src.chromium.org/svn/trunk/src@69591 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 2a006abc543d70bab2862901eec07b2a27cd6550
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser