Revert of Splitting of layers for correct intersections

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
Committed: https://crrev.com/f0d5e0d31ba3659eb782d87baf95539ccd2b6d36
Cr-Commit-Position: refs/heads/master@{#320122}

[gab, 2015-03-11 19:32:23]

Created Revert of Splitting of layers for correct intersections

[commit-bot: I haz the power, 2015-03-11 19:38:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/998023002/1

[commit-bot: I haz the power, 2015-03-11 19:46:32]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-11 19:47:30]

Patchset 1 (id:??) landed as
https://crrev.com/f0d5e0d31ba3659eb782d87baf95539ccd2b6d36
Cr-Commit-Position: refs/heads/master@{#320122}