Revert "Reland "Correctly initialize and test SnapContainerData in cc.""

This reverts commit 043b97cee41154a32d6c1cd8965075813a9ba672.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Reland "Correctly initialize and test SnapContainerData in cc."
>
> This reverts commit 0fc70abb02f52598f0f98eafd7001490545bc0c9.
>
> Reason for revert: <INSERT REASONING HERE>
>
> Original change's description:
> > Revert "Correctly initialize and test SnapContainerData in cc."
> >
> > This reverts commit 37061f875b167ab82f1a0ddca84b510b7c6802dc.
> >
> > Reason for revert:
> > The layout tests added by this CL is failing on the CL:
> > https://ci.chromium.org/buildbot/chromium.webkit/WebKit%20Win10/37804
> >
> > Original change's description:
> > > Correctly initialize and test SnapContainerData in cc.
> > >
> > > This patch initializes the rect_ field in SnapContainerData in copy
> > > constructor and move constructor. Fixing a snapping issue in the
> > > composited pages.
> > >
> > > We also adds external/wpt/css/css-scroll-snap/ to the virtual/threaded
> > > test suite so that they are tested with the composited cases.
> > >
> > > snap-at-user-scroll-end-manual-automation.js calls
> > > mouseClickInTarget() of pointerevent_common_input.js. That method
> > > invokes programmatic scrolls. The test was written before programmatic
> > > scroll snapping was implemented so it worked at that time. However,
> > > with programmatic scroll snapping implemented, it will always snap
> > > in mouseClickIntarget() and cannot test whether the user scroll snaps.
> > > This patch adds a parameter shouldScrollToTarget to mouseClickInTarget
> > > to avoid invoking programmatic scrolls in the test.
> > >
> > > This patch also checks nullptr for layout_box in
> > > ScrollManager::SnapAtGestureScrollEnd() to fix a crash.
> > >
> > > Bug: 862406, 862571
> > > Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;master.tryserver.blink:linux_trusty_blink_rel
> > > Change-Id: I6a53818cf74421a4100ad6f908158abf302a5b8e
> > > Reviewed-on: https://chromium-review.googlesource.com/1132386
> > > Commit-Queue: Sandra Sun <[email protected]>
> > > Reviewed-by: Majid Valipour <[email protected]>
> > > Reviewed-by: Robert Flack <[email protected]>
> > > Cr-Commit-Position: refs/heads/master@{#574781}
> >
> > [email protected],[email protected],[email protected]
> >
> > Change-Id: I55c77c05c0381c8ac638bd106d2d18b1b4332745
> > No-Presubmit: true
> > No-Tree-Checks: true
> > No-Try: true
> > Bug: 862406, 862571
> > Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;master.tryserver.blink:linux_trusty_blink_rel
> > Reviewed-on: https://chromium-review.googlesource.com/1136171
> > Reviewed-by: Taiju Tsuiki <[email protected]>
> > Commit-Queue: Taiju Tsuiki <[email protected]>
> > Cr-Commit-Position: refs/heads/master@{#574825}
>
> [email protected],[email protected],[email protected],[email protected]
>
> Change-Id: I4a9480b68c15e0dfcfd13df6ed6c0e6b8ab5a8e3
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: 862406, 862571
> Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;master.tryserver.blink:linux_trusty_blink_rel
> Reviewed-on: https://chromium-review.googlesource.com/1136671
> Reviewed-by: Sandra Sun <[email protected]>
> Commit-Queue: Sandra Sun <[email protected]>
> Cr-Commit-Position: refs/heads/master@{#574926}

[email protected],[email protected],[email protected],[email protected]

Change-Id: If9d1e6f73393a7dddc9f8f418606946f070b45be
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 862406, 862571
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;master.tryserver.blink:linux_trusty_blink_rel
Reviewed-on: https://chromium-review.googlesource.com/1136612
Reviewed-by: Sandra Sun <[email protected]>
Commit-Queue: Sandra Sun <[email protected]>
Cr-Commit-Position: refs/heads/master@{#574931}

css/css-scroll-snap/snap-at-user-scroll-end-manual.html

@@ -45,7 +45,6 @@ <h4>Tests that the window can snap at user scroll end.</h4>
 </div>
 
 <script>
-var snap_test = async_test('Tests that window should snap at user scroll end.');
 var body = document.body;
 var button = document.getElementById("btn");
 var target = document.getElementById("target");
@@ -81,7 +80,7 @@ <h4>Tests that the window can snap at user scroll end.</h4>
   // To make the test result visible.
   var content = document.getElementById("content");
   body.removeChild(content);
-  snap_test.done();
+  done();
 }
 
-</script>
+</script>