Cherry-pick: Enable async upload egl with mailbox synchronizer

Cherry-pick with conflict of chromium crrev.com/r289172

Conflicts:
	gpu/command_buffer/service/async_pixel_transfer_manager_android.cc

BUG: 16550863

Original description:

With the workaround in r286800, mailbox synchronizer skips tile
textures, so is compatible with async transfer egl.

This is a partial revert of r286501.

Change-Id: I0a193f464e0a23ab9b9a9af16770058966b6c587
1 file changed