Update shasum for 3rdparty submodule.

This is necessary because I pushed patches
on top of the 3rdparty submodule to debug
the mac CI bot.

Change-Id: I3c3f2aff921bc8438bbbb446cbb3e125d21562f7
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>
Give the demo browser prettier popups

Change-Id: Ia8052bffc7be18c4d8f81c3a89ac4a64b1c589af
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>
Early return if no submodules were found using DEPS files

While we're at it, also remove a stray currentDir variable
in readSubmodules.

Change-Id: Ia814906597f436513c4e57ed487ba478154eee4f
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>
Silence a warning

While we're at it, QWebEnginePage::createWindow is non const,
we could probably use a non const d-ptr in there.

Change-Id: If5ad43dcb5d13454c87b7dc84d69b976b1b5e334
Reviewed-by: Andras Becsi <andras.becsi@digia.com>