MacViews: Changes to allow app_list_unittests to compile

MacViews: Changes to allow app_list_unittests to compile

It needs a better compositor setup for the tests to actually pass, but
it compiles now. Changes were to fix the concept of "parent", which is a
container aura::Window in Ash, and NULL on other platforms. However, the
parent type for Widgets is a NativeView, not a NativeWindow.

Gyp changes are required to resolve undefined symbols
"ui::{Terminate,Initialize}ContextFactoryForTests()". This is called
from ViewsTestBase in views_test_support, but views_test_support is
missing the dependency on compositor_test_support where these are
defined. On other platforms, this leaks in via aura stuff.

BUG=365977, 399191
TBR=sky@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=287291

[tapted, 2014-07-31 08:20:50]

fixed Ash - was hoping to avoid the #ifdef.. I think it could be done by passing
the context (as well as a parent) in to AppListView->InitAsBubble, and then
setting it in AppListView::OnBeforeBubbleWidgetInit, this would correspond
better with the Widget::InitParams.

Alternatively create a dummy views::Widget in the test to act as the "container"
aura::Window. But I don't think either of these are worth the added complexity.

[calamity, 2014-08-04 02:36:06]

lgtm

[tapted, 2014-08-04 02:49:36]

The CQ bit was checked by tapted@chromium.org

[commit-bot: I haz the power, 2014-08-04 02:50:39]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tapted@chromium.org/438533002/40001

[commit-bot: I haz the power, 2014-08-04 03:33:20]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  chromium_presubmit on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[commit-bot: I haz the power, 2014-08-04 03:36:07]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-08-04 03:36:07]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[tapted, 2014-08-04 03:39:36]

+sky TBR for a trivial views.gyp change. This is just moving the
compositor_test_support dependency from views_unittests to views_test_support.
The function needed -- ui::{Terminate,Initialize}ContextFactoryForTests() -- is
called from ViewsTestBase, in the test_support target.

[tapted, 2014-08-04 03:40:54]

The CQ bit was checked by tapted@chromium.org

[commit-bot: I haz the power, 2014-08-04 03:41:45]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tapted@chromium.org/438533002/40001

[commit-bot: I haz the power, 2014-08-04 03:45:36]

Change committed as 287291