Unit test both MQ parsers. Fix MQ parser block handling bugs

Unit test both MQ parsers. Fix MQ parser block handling bugs

Enables the MQ parser unit test to verify that both the Bison parser and MediaQueryParser are functioning as they should be.
Also fixes a couple of bugs that were found in the process, and adds testing for these cases.

BUG=358041, 358967
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=170682

[Yoav Weiss, 2014-04-02 05:01:51]

Followup on https://codereview.chromium.org/221383003/

[eseidel, 2014-04-02 05:08:36]

lgtm

Fantatsic.  Please relate to a bug. :)

[Yoav Weiss, 2014-04-02 10:02:29]

On 2014/04/02 05:08:36, eseidel wrote:
> lgtm
> 
> Fantatsic.  Please relate to a bug. :)

While trying to land this, the tests found a block handling bug that went below
the radar earlier.
I've fixed it, as well as another one I found when adding related tests.

So, I think it needs a re-review :)

[rune, 2014-04-02 12:48:30]

https://codereview.chromium.org/221693004/diff/40001/Source/core/css/parser/M...
File Source/core/css/parser/MediaQueryParser.cpp (right):

https://codereview.chromium.org/221693004/diff/40001/Source/core/css/parser/M...
Source/core/css/parser/MediaQueryParser.cpp:182: const unsigned
blockParametersNumber = 4;

We normally use enums like:

    enum { BlockParametersCount = 4 };

[eseidel, 2014-04-02 17:18:37]

Other than the capitalization nit from rune, lgtm.

[Yoav Weiss, 2014-04-02 17:26:53]

The CQ bit was checked by yoav@yoav.ws

[commit-bot: I haz the power, 2014-04-02 17:27:03]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yoav@yoav.ws/221693004/60001

[commit-bot: I haz the power, 2014-04-02 17:37:55]

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

[commit-bot: I haz the power, 2014-04-02 17:37:55]

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

[Yoav Weiss, 2014-04-02 17:59:35]

The CQ bit was checked by yoav@yoav.ws

[commit-bot: I haz the power, 2014-04-02 17:59:44]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yoav@yoav.ws/221693004/60001

[commit-bot: I haz the power, 2014-04-02 19:07:29]

Change committed as 170682