In bug 1470348 we started to detach all SurfaceTextures from the
current GL context in CompositorOGL::Pause(). This was required for
VR, so that when the VR presentation was entered the SurfaceTextures
could be attached to the VR context instead.
When RenderCompositorEGL was implemented for webrender, we copied the
call to detach from CompositorOGL. However, due to extra complexity in
webrender's threading model, this is causing assertion failures.
VR no longer relies upon the SurfaceTextures being detached when the
compositor is paused, as it now uses its own SurfaceTexture
set. Therefore we can remove the detach call from both
CompositorOGL::Pause and RenderCompositorEGL::Pause.
Differential Revision: https://phabricator.services.mozilla.com/D74832
b10845210b