Changes the call to IGBP::detachNextBuffer to return an
sp<GraphicBuffer> instead of an ANativeWindowBuffer*.
Bug: 20092217
Change-Id: I59d6acef7120de5040c6710aeecfa1633ec7f736
Attempting to access an Image after it is closed will result in an ISE.
Also fixed some minor doc issues.
Bug: 19872785
Change-Id: I91f037b2b2f243fcbd905d5a646b505bc9c10638
ImageWriter/Reader API change, including below changes
* Interface for Opaque ImageReader
* ImageWriter Interface and implementation
* Image class minor update to support ImageWriter opaque ImageReader
detach/attach interface are defined but yet to be implemented.
Change-Id: Ic7c0d2df73c80b1a81a7316d8c4556bf7703c309