Revert of Splitting of layers for correct intersections (patchset #20 id:370001 of https://codereview.chromium.org/595593002/)

Reason for revert:
Appears to be adding new static initializers and is breaking Mac/Linux builders, e.g.: http://build.chromium.org/p/chromium/buildstatus?builder=Mac&number=34562

Original issue's description:
> Splitting of layers for correct intersections
>
> Sorting 3d-sorted layers and rendering them in that order causes issues
> when layers intersect. Instead place 3d-sorted layers in a bsp tree and
> fragment any intersecting layers into non-rectangular quads. We can then
> render the fragments in the correct sorted order regardless of
> intersections.
>
> BUG=455918,159225,132122,230833
>
> Committed: https://crrev.com/7e2af77dcd3b5df086be3421fad40b719779381c
> Cr-Commit-Position: refs/heads/master@{#320096}

TBR=enne@chromium.org,danakj@chromium.org,eroman@chromium.org,thakis@chromium.org,awoloszyn@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=455918,159225,132122,230833

Review URL: https://codereview.chromium.org/998023002

Cr-Commit-Position: refs/heads/master@{#320122}

1 files changed, 8 insertions, 0 deletions

diff --git a/cc/trees/layer_tree_impl_unittest.cc b/cc/trees/layer_tree_impl_unittest.cc
index 06df3c2..67f98e65 100644
--- a/cc/trees/layer_tree_impl_unittest.cc
+++ b/cc/trees/layer_tree_impl_unittest.cc
@@ -920,6 +920,14 @@ TEST_F(LayerTreeImplTest, HitTestingForMultipleLayersAtVaryingDepths) {
   ASSERT_TRUE(grand_child1);
   ASSERT_EQ(1u, RenderSurfaceLayerList().size());
 
+  RenderSurfaceImpl* root_render_surface =
+      host_impl().active_tree()->root_layer()->render_surface();
+  ASSERT_EQ(4u, root_render_surface->layer_list().size());
+  ASSERT_EQ(3, root_render_surface->layer_list().at(0)->id());
+  ASSERT_EQ(1, root_render_surface->layer_list().at(1)->id());
+  ASSERT_EQ(2, root_render_surface->layer_list().at(2)->id());
+  ASSERT_EQ(4, root_render_surface->layer_list().at(3)->id());
+
   // Nothing overlaps the root_layer at (1, 1), so hit testing there should find
   // the root layer.
   gfx::Point test_point = gfx::Point(1, 1);