Only support AddFeatures invalidation set mode for :host or :any in a rightmost selector

Only support AddFeatures invalidation set mode for :host or
:any in selector components to the right of the rightmost
descendant relation.

This fixes a bug that caused this to be the case accidentally in cases such as:

:host(.foo) #bar

when #bar is not (yet) supported for the style invalidation
tree walk.

BUG=358704
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=170637

[esprehn, 2014-04-02 00:20:58]

lgtm

https://codereview.chromium.org/221643002/diff/60001/Source/core/css/RuleFeat...
File Source/core/css/RuleFeature.h (right):

https://codereview.chromium.org/221643002/diff/60001/Source/core/css/RuleFeat...
Source/core/css/RuleFeature.h:132: static InvalidationSetMode
getInvalidationSetMode(const CSSSelector&);
We don't usually use "get" like this, invalidationSetMode() or
invalidationSetModeForSelector() or something is what we usually do

[chrishtr, 2014-04-02 04:19:50]

https://codereview.chromium.org/221643002/diff/60001/Source/core/css/RuleFeat...
File Source/core/css/RuleFeature.h (right):

https://codereview.chromium.org/221643002/diff/60001/Source/core/css/RuleFeat...
Source/core/css/RuleFeature.h:132: static InvalidationSetMode
getInvalidationSetMode(const CSSSelector&);
On 2014/04/02 00:20:58, esprehn wrote:
> We don't usually use "get" like this, invalidationSetMode() or
> invalidationSetModeForSelector() or something is what we usually do

Done.

[chrishtr, 2014-04-02 04:19:58]

The CQ bit was checked by chrishtr@chromium.org

[commit-bot: I haz the power, 2014-04-02 04:20:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/chrishtr@chromium.org/221643002/80001

[commit-bot: I haz the power, 2014-04-02 04:32:58]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-04-02 04:32:58]

Try jobs failed on following builders:
  tryserver.blink on win_blink_compile_dbg

[chrishtr, 2014-04-02 04:47:31]

The CQ bit was checked by chrishtr@chromium.org

[commit-bot: I haz the power, 2014-04-02 04:47:37]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/chrishtr@chromium.org/221643002/100001

[commit-bot: I haz the power, 2014-04-02 05:53:33]

Change committed as 170637

[rune, 2014-04-02 08:13:51]

lgtm. thanks for fixing!