Fix unit_tests link when remoting is turned off.

The problem occured at least on Windows with component set to
shared_library. Problem is referencing media::AudioParameters::AudioPameters()
from media_test_support.mock_audio_manager.obj.

Review URL: https://codereview.chromium.org/40143002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230995 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 230995