Jeff Sharkey f67c8a9685 Move DRM to CloseGuard, add DrmOutputStream.
Switch DrmManagerClient to using CloseGuard to better track leaked
resources.  Add DrmOutputStream which applies DRM transformation as
data is written, similar to FilterOutputStream.  Also writes DRM
headers before closing.

Change-Id: Ic106a3e6f6ff666e4dda484fbd234a0849eec8c0
2012-12-13 13:51:40 -08:00
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