Revert "Revert "Second try at adding a compatibility symbol for the MemoryBase constructor.""

jellybean camera driver need this symbol

This reverts commit 2dccfdcd265ca86cca5ac863d921e5c647b93073.

Change-Id: I6f44bcc285d83bcd9c48c42c2d54c874dedc74c7
Omap3 use this workaround too
MemoryHeapBase: ifdef for gingerbread/froyo compatibility

Allow to "revert" by a board config flag the offset member addon
see commit f24c4cd0f20 (aosp change id Ie618fb5c0718e)

This change is required to use overlay based proprietary camera libs
coming from gingerbread and froyo builds.

This change also requires a global cflag named BINDER_COMPAT
because a lot of modules use the MemoryHeap includes

Add this in your BoardConfig.mk :
COMMON_GLOBAL_CFLAGS += -DBINDER_COMPAT

Backported from /#/c/13317/

Change-Id: I2e5c10d3cd9584803dd282aa17650661d6499e5b

Conflicts:

	include/binder/MemoryHeapBase.h
Revert "remove support for glReadPixels screenshot path"

This reverts commit 3ca76f416bc8665a97636ca8a2d0128b9da9d92c.
Revert "remove support for HWC < 1.0"

This partially reverts commit 30bcc61431d8e3bef779472dd52a7b156dcaba09
and updates to the current API. Tested on 0.1 blobs from Tegra2/3
and OMAP3/4

Change-Id: I43cee8852b266d68d1edefbe7ac988b9dbcf7227

Conflicts:
	services/surfaceflinger/DisplayHardware/HWComposer.cpp
surfaceflinger: Update support for hwc < 1.0

Add android::HWCLayerVersion0 implementations of the new methods

Change-Id: Ic199c9b4262049b74632a57ad2b2cdf462a05b43