Adding a bit of logging to track down the reason for recent "LaunchBrowser(browser, page)" failures on the build bots.

TEST=n/a
BUG=none


Review URL: http://codereview.chromium.org/2099005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@47690 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed