Enterprise enrollment screen header aligned with logo.

BUG=174293
NOTRY=true

Review URL: https://codereview.chromium.org/26969003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228481 0039d316-1c4b-4281-b951-d872f2087c98
Use 10ms buffer size for windows and linux when webrtc is not connected to peer connection.

Otherwise the default buffer size 2048 will be used.

BUG=306417
TEST=webrtc.googlecode.com/svn/trunk/samples/js/demos/html/local-audio-rendering.html latency should be good.

Review URL: https://codereview.chromium.org/26985003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228482 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228482