(If I continue past this point, the app window is just blank white.)

It needs to pass a non-null surface_manager_ to the InProcessContextFactory probably.

Oh I made it do that already recently: https://cs.chromium.org/chromium/src/ui/views/examples/examples_main.cc?rcl=0&l=74

But it sounds like this branch isn't going the right way: https://cs.chromium.org/chromium/src/ui/compositor/test/in_process_context_factory.cc?rcl=0&l=170

pkasting: I assume you're after https://chromium.googlesource.com/chromium/src/+/be9c59ee04d8297a3a8bc5c0ef8ecb843d3914be ?

@7: I tried updating (to get that change) and rebuilding, and now the .exe runs without a DCHECK but the window is empty; on resizing the window, it draws, but everything is vertically flipped. 

Could what you pointed out in comment 5 be at all related?  Does this sound like a compositor issue?

If its drawing, then the branch in #5 is going the right way now. I would have expected a crash after that change from #7 if it was going the wrong way. So I don't think that's related anymore.

Upside down means https://cs.chromium.org/chromium/src/cc/output/output_surface.h?rcl=1472831237&l=80 that bool is wrong for your platform. DirectOutputSurface https://cs.chromium.org/chromium/src/ui/compositor/test/in_process_context_factory.cc?rcl=1472831237&l=52 should set it in its constructor. I'm not sure where else DirectOutputSurface would be used. I guess you could try linux as well and see if it should be flipped there.

https://cs.chromium.org/chromium/src/ui/compositor/test/in_process_context_factory.h?rcl=1472831237&l=40 I only see that being used for views_examples and aura_demo (which is broken for other unrelated reasons i learnt recently).

Not drawing until resize.. I'm not sure what is wrong there. Would require some debugging to see. Maybe nothing is telling the compositor to draw or that there is damage or something. Resize would do both of those.

I'm not going to spend time debugging that at this point probably though.. this executable isn't much used, it's been broken for probably more than a year without anyone noticing. I'm happy to help you if you got questions though. Would you like to own this bug or should we close it?

I wanted to just kill the .exe.  Scott says this is useful and he wants to keep it, so I'm going to turn this over to him to fix or find a better owner for.

sky: ping

I'm not going to have time to look into this any time soon. views_examples works fine on other platforms and is definitely used, so we shouldn't nuke it. I suspect the fix isn't that tricky, but I could be wrong.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/511c2ded54ef4c20b0013cf7057217c1971f3bb4

commit 511c2ded54ef4c20b0013cf7057217c1971f3bb4
Author: sky <sky@chromium.org>
Date: Tue Jan 31 07:34:13 2017

Gets views_examples drawing again

Two things were missing:
. the output surface needs to be marked flipped.
. The display wasn't initially sized.

BUG= 640748 
TEST=none
R=fsamuel@chromium.org

Review-Url: https://codereview.chromium.org/2661123003
Cr-Commit-Position: refs/heads/master@{#447203}

[modify] https://crrev.com/511c2ded54ef4c20b0013cf7057217c1971f3bb4/ui/compositor/test/in_process_context_factory.cc

The patch I just landed gets views_examples showing something on win7, but not on win10...

What does it show on win10? Does it draw once then not again, like its a damage problem?

An empty white window comes up, and on resize the newly exposed areas are black.

Does it work with --disable-direct-composition ? I'm not sure what implementations this test is using, but maybe it's missing an implementation of DidCreateAcceleratedSurfaceChildWindow, so the rendering window isn't being reparented to the browser window.

In particular, InProcessCommandBuffer::DidCreateAcceleratedSurfaceChildWindow should probably be implemented as ::SetParent(child_window, parent_window);

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/16305b01e5fa25c11eff50d34238bc6576781fa4

commit 16305b01e5fa25c11eff50d34238bc6576781fa4
Author: brettw <brettw@chromium.org>
Date: Tue Feb 07 20:10:18 2017

Fix in-process compositing on Windows 10.

DidCreateAcceleratedSurfaceChildWindow was not being implemented so the rendering
window wasn't being reparented to the browser window.

BUG= 640748 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2673433002
Cr-Commit-Position: refs/heads/master@{#448713}

[modify] https://crrev.com/16305b01e5fa25c11eff50d34238bc6576781fa4/gpu/ipc/in_process_command_buffer.cc