Remove tests that shouldn't pass according to the current spec.

Remove tests that shouldn't pass according to the current spec.

Some tests in style-with-shadow-pseudo-element.html and
style-with-deep-combinator.html did check if a style rule
in a shadow tree can be applied to its sibling shadow tree(s),
which is against the current spec.

I will add some test *against* such case, that a style rule
doesn't apply to its sibling shadow tree, along with the fix for
bug 355674 later.

BUG=355674
TEST=pass layout tests.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=175078

[kochi, 2014-05-29 07:47:19]

Hello Takashi,

Could you review?
Thanks,

https://codereview.chromium.org/304123002/diff/1/LayoutTests/fast/dom/shadow/...
File LayoutTests/fast/dom/shadow/style-with-shadow-pseudo-element.html (left):

https://codereview.chromium.org/304123002/diff/1/LayoutTests/fast/dom/shadow/...
LayoutTests/fast/dom/shadow/style-with-shadow-pseudo-element.html:309: //
div::shadow span in an insert shadow tree cannot match any element in active
shadow tree.
Looks like this comment is valid, though...

[tasak, 2014-05-29 07:55:11]

lgtm

[kochi, 2014-05-29 08:36:42]

The CQ bit was checked by kochi@chromium.org

[commit-bot: I haz the power, 2014-05-29 08:38:29]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/kochi@chromium.org/304123002/1

[commit-bot: I haz the power, 2014-05-29 23:11:03]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/9795)

[commit-bot: I haz the power, 2014-05-30 00:31:20]

Change committed as 175078