Report errors occurring during WASAPI startup.

We see a lot of crash reports around closing invalid handles.  It's
possible these are due to unreported errors that result in unstarted
threads being joined.

BUG=none
TEST=none

Review URL: https://codereview.chromium.org/26069003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227400 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227400