Revert of Compute if a layer is clipped outside CalcDrawProps (patchset #9 id:160001...

Revert of Compute if a layer is clipped outside CalcDrawProps (patchset #9 id:160001 of https://codereview.chromium.org/1231453002/)

Reason for revert:
It looks like this is causing MSAN failures from an uninitialized variable in the webkit_tests:

http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20MSAN/builds/4378/steps/webkit_tests/logs/stdio

10:00:36.214 29049   ==29058==WARNING: MemorySanitizer: use-of-uninitialized-value
10:00:36.214 29049       #0 0x7f620bf62c3e in set_is_clipped cc/layers/layer.h:503:9
10:00:36.214 29049       #1 0x7f620bf62c3e in AddClipNodeIfNeeded<cc::Layer> cc/trees/property_tree_builder.cc:149:0
10:00:36.214 29049       #2 0x7f620bf62c3e in void cc::(anonymous namespace)::BuildPropertyTreesInternal<cc::Layer>(cc::Layer*, cc::(anonymous namespace)::DataForRecursion<cc::Layer> const&) cc/trees/property_tree_builder.cc:386:0
10:00:36.214 29049       #3 0x7f620bf5d128 in void cc::BuildPropertyTreesTopLevelInternal<cc::Layer>(cc::Layer*, cc::Layer const*, cc::Layer const*, cc::Layer const*, float, float, gfx::Rect const&, gfx::Transform const&, cc::PropertyTrees*) cc/trees/property_tree_builder.cc:466:3
10:00:36.214 29049       #4 0x7f620c206ee6 in cc::BuildPropertyTreesAndComputeVisibleRects(cc::Layer*, cc::Layer const*, cc::Layer const*, cc::Layer const*, float, float, gfx::Rect const&, gfx::Transform const&, cc::PropertyTrees*, std::__1::vector<scoped_refptr<cc::Layer>, std::__1::allocator<scoped_refptr<cc::Layer> > >*) cc/trees/draw_property_utils.cc:473:3
10:00:36.214 29049       #5 0x7f620be94a2f in cc::LayerTreeHost::DoUpdateLayers(cc::Layer*) cc/trees/layer_tree_host.cc:789:5

on pretty much every test.

So I'm reverting this. Sorry!

Original issue's description:
> Compute if a layer is clipped outside CalcDrawProps
>
> We need to know if a layer is clipped to compute its drawable
> visible rect. So, we need to compute it outside CalcDrawProps to move
> drawable visible rect computation outside CalcDrawProps.
>
> Committed: https://crrev.com/2af7226e29be65a8ea4a279b9358a6fcfada5cd3
> Cr-Commit-Position: refs/heads/master@{#338515}

TBR=ajuma@chromium.org,enne@chromium.org,vollick@chromium.org,jaydasika@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1236943002

Cr-Commit-Position: refs/heads/master@{#338542}