GitLab

Fold Pipeline initialization failure tests added in r150636 into PipelineTeardownTest.

As a bonus we now get coverage on stopping-while-initializing!

Review URL: https://chromiumcodereview.appspot.com/10834266

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151075 0039d316-1c4b-4281-b951-d872f2087c98