This change fixes an issue causing the mEglContext member of a SurfaceTexture
to get incorrectly zeroed out. This would happen when a call to
ConsumerBase::releaseBufferLocked resulted in the current buffer being freed.
Freeing the current buffer would set SurfaceTexture::mCurrentTexture to -1,
which would then be used by SurfaceTexture::releaseBufferLocked to reset the
current slot's EGLSyncKHR to EGL_NO_SYNC_KHR (= 0). This would overwrite the
mEglContext field, resulting in context mismatch errors in
SurfaceTexture::doGLFenceWaitLocked.
The fix is to simply use the buffer slot that's passed in to
SurfaceTexture::releaseBufferLocked rather than mCurrentTexture.
Change-Id: I0e5e2bd88fcbb354c35a3744f317716fff3e0e41
d1b330de41