Do not use notify feature of testDeviceLost.

This is part one of a simplification of testDeviceLost. This
patch changes the instances where we would use the notify
parameter to notify the Display directly. We can do this
by using the Display attached to the Renderer in some cases.

BUG=angle:795

Change-Id: I24fd827989d47b0b2cefef7afb99fa62581ddc1b
Reviewed-on: https://chromium-review.googlesource.com/228910
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Remove notify parameter from testDeviceLost.

We can get rid of this parameter now that we call notify
directly on the display in cases where we need to.

BUG=angle:795

Change-Id: I2024b70d0d725e755f7aa742ba221c2d0179d8b6
Reviewed-on: https://chromium-review.googlesource.com/228911
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Make device lost flag a RendererD3D member.

This flag we used in both D3D renderers, and hence we can move it
to the base class to share a bit of common code.

BUG=angle:795

Change-Id: I8bd60796bfeb9590bdf798f9d044f8e20c7ad779
Reviewed-on: https://chromium-review.googlesource.com/228912
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>