Separate image processing logic from presentation logic.

ui/ui_unittests.gypi

Index: ui/ui_unittests.gypi
diff --git a/ui/ui_unittests.gypi b/ui/ui_unittests.gypi
index 715ce17ef2084b14a67cf40f7deaa8a177ce1488..8a3d9b04a1e093626694b6b22d784edeabb09ee3 100644
--- a/ui/ui_unittests.gypi
+++ b/ui/ui_unittests.gypi
@@ -51,6 +51,7 @@
         '../third_party/icu/icu.gyp:icui18n',
         '../third_party/icu/icu.gyp:icuuc',
         '../third_party/libpng/libpng.gyp:libpng',
+        '../ui/surface/surface.gyp:surface',

[ncarter (slow), 2012/12/17 19:13:49]

I'm seeing a circular dependency error on the Mac trybots (though I don't quite
follow why). I'll fix this somehow.

[apatrick_chromium, 2012/12/17 21:30:44]

Still or does this fix it? There's a gyp-explain tool:

https://codereview.chromium.org/8672006/

I think you can run this on a mac to see what the dependency is:

python tools/gyp-explain.py surface

Or something along those lines. The internet knows how.

[ncarter (slow), 2012/12/17 23:48:46]

I think it's a circular dependency in the .gyp files, not in the targets.

Basically, surface.gyp depends on ui.gyp, and with my change ui_unittests.gypi
depends on surface.gyp, and  ui_unittests.gypi is included by ui.gyp.

None of the options I can think of are particularly appealing:
 - Create off a new unit test executable in surface.gyp?
 - Split ui_unittests out of ui.gyp?
 - Change ui/surface/surface.gyp, so that it's a .gypi included by ui.gyp?

The last of these options seems the most workable, but I dislike all three -- do
speak up if you have a better idea.

[apatrick_chromium, 2012/12/18 00:01:12]

Any of those three are okay I think. Do whichever one works :)

         'ui',
         'ui_resources',
         'ui_test_support',
@@ -132,6 +133,7 @@
         'gfx/render_text_unittest.cc',
         'gfx/transform_util_unittest.cc',
         'gfx/video_decode_acceleration_support_mac_unittest.mm',
+        'surface/accelerated_surface_transformer_win_unittest.cc'
       ],
       'include_dirs': [
         '../',