Merge "don't handle the transparent region of a layer in draw()" into gingerbread

    }

}

void LayerBase::draw(const Region& inClip) const

void LayerBase::draw(const Region& clip) const

{

    // invalidate the region we'll update

    Region clip(inClip);  // copy-on-write, so no-op most of the time

    // Remove the transparent area from the clipping region

    const State& s = drawingState();

    if (LIKELY(!s.transparentRegion.isEmpty())) {

        clip.subtract(transparentRegionScreen);

        if (clip.isEmpty()) {

            // usually this won't happen because this should be taken care of

            // by SurfaceFlinger::computeVisibleRegions()

            return;

        }        

    }

    // reset GL state

    glEnable(GL_SCISSOR_TEST);