Wu-cheng Li d02c812a21 Only enable CAMERA_MSG_PREVIEW_FRAME when necessary.
Now camera driver uses ANativeWindow for display.
CameraService should not request preview callback from
camera hardware if applications have not requested it.

bug:2951018
Change-Id: I85f74ea4a61104feca018867bc9d6dfe3a9479f5
2010-09-09 16:23:35 -07:00
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