Prevent AudioLowLatencyInputMac from changing frame sizes.

Otherwise we'll hit a CHECK() later since the shared memory isn't configured for the new frame size.

BUG=154352
TEST=mac build no longer crashes.


Review URL: https://chromiumcodereview.appspot.com/11086009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@160759 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed