TestScreen shouldn't be marked aura export

Recommit r125950, which was reverted by r125958 due to link failures on win_aura bot.

Aura/Ash split: Move ScreenAura to aura::RootWindowScreen.

What is now aura::RootWindowScreen was tightly bundled with aura::RootWindow. Instead of moving it to ash::ScreenAsh, I renamed it aurea::RootWindowScreen because there's a bunch of unit tests that use RootWindow as if it were the desktop. Screen integration stuff has been moved out of RootWindow (and related observers) and into ash::Shell.

BUG=116458
First Review URL: http://codereview.chromium.org/9616045

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=126464

[Elliot Glaysher, 2012-03-12 22:29:57]

The only difference is the removal of AURA_EXPORT in TestScreen. Also, win_aura
trybot has gone green to show this is actually fixed.

[Ben Goodger (Google), 2012-03-12 22:37:11]

lgtm

[commit-bot: I haz the power, 2012-03-12 22:42:12]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/erg@chromium.org/9696008/1

[commit-bot: I haz the power, 2012-03-12 22:42:29]

Can't apply patch for file
content/browser/renderer_host/test_render_view_host.cc.
While running patch -p1 --forward --force;
patching file content/browser/renderer_host/test_render_view_host.cc
Hunk #1 FAILED at 20.
Hunk #2 FAILED at 416.
2 out of 2 hunks FAILED -- saving rejects to file
content/browser/renderer_host/test_render_view_host.cc.rej

[commit-bot: I haz the power, 2012-03-13 00:37:50]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/erg@chromium.org/9696008/3006

[commit-bot: I haz the power, 2012-03-13 02:38:03]

Can't apply patch for file ui/ui.gyp.
While running patch -p1 --forward --force;
patching file ui/ui.gyp
Hunk #1 FAILED at 337.
1 out of 1 hunk FAILED -- saving rejects to file ui/ui.gyp.rej

[commit-bot: I haz the power, 2012-03-13 03:08:21]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/erg@chromium.org/9696008/1039

[commit-bot: I haz the power, 2012-03-13 05:37:39]

Can't apply patch for file
ash/wm/workspace/workspace_window_resizer_unittest.cc.
While running patch -p1 --forward --force;
patching file ash/wm/workspace/workspace_window_resizer_unittest.cc
Hunk #1 FAILED at 4.
Hunk #2 succeeded at 52 (offset 1 line).
Hunk #3 succeeded at 547 (offset 1 line).
Hunk #4 succeeded at 589 (offset 1 line).
1 out of 4 hunks FAILED -- saving rejects to file
ash/wm/workspace/workspace_window_resizer_unittest.cc.rej

[commit-bot: I haz the power, 2012-03-13 18:25:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/erg@chromium.org/9696008/41

[commit-bot: I haz the power, 2012-03-13 21:09:22]

Change committed as 126464