Remove redundant arguments for VideoCaptureDevice::Client::OnIncomingCapturedFrame.

The flip arguments were added for Android. But it turns out they are not needed any more.
Remove them to simplify the interface.

For desktop capture, the frame inversion happens only on Mac10.6. We'd prefer code simplicity
over performance for that.

BUG=
R=sergeyu@chromium.org

Review URL: https://codereview.chromium.org/113593002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240387 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 240387