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Add an parameter to SoftwareOutputDeviceWin to always set
|is_hwnd_composited_| to false. This parameter is only set true when
running OOP-D (eg. VizDisplayCompositor feature) so it should have no
effect on normal canary users.

The reason for this CL is that the calls to SetWindowLong() and
UpdateLayeredWindow() don't work in the GPU process. The other drawing
path works correctly. Certain top level windows, for example the omnibox
popup or the URL tooltip, use this path and don't show up with OOP-D.

Not using the layered window drawing path works properly on Windows 10.
I'm not totally sure how it will effect Windows 7 and Vista, hence this
patch to make it possible to test with canary. This should be reverted
after testing.

Bug: 826633
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel
Change-Id: If632d25c7111161e2a84caae8dc7b13d65f9ff51
Reviewed-on: https://chromium-review.googlesource.com/1022123Reviewed-by: danakj <danakj@chromium.org>
Commit-Queue: kylechar <kylechar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#552464}