Fixed the bug of resolving the form "action" attribute.

In some scenarios, as described in the bug, the form "action" is not correctly resolved. This is due to the fact that the change of "m_action" to KURL in CL 311033003 required that base URLs during the parsing of action attribute. However, base URL is not always available during this stage. So returning back "m_action" to a string and defer the logic of resolving action URL during the "form submission" creation.

BUG=388664

Review URL: https://codereview.chromium.org/382193005

git-svn-id: svn://svn.chromium.org/blink/trunk@178223 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Disable shortStandaloneMonth test in Russian

ICU/CLDR has changed short stand-alone month names in Russian locale.

With ICU update, these tests will fail. Disable them temporarily
and enable them again once the ICU update is completed.

To make enabling easy, also update the expected result in this CL.

BUG=377042
TEST=webkit_unit_tests --gtest_filter=LocaleICUTest passes.

Review URL: https://codereview.chromium.org/398583004

git-svn-id: svn://svn.chromium.org/blink/trunk@178224 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove strange parentElement() code from HitTestResult

This code doesn't make any sense, why would the parentElement() be in
the document if the node wasn't?

It came from http://src.chromium.org/viewvc/blink?view=revision&revision=23994
7 years ago when the HitTestResult was actually stored in the Event, but
even then it doesn't seem to make sense.

Review URL: https://codereview.chromium.org/394013003

git-svn-id: svn://svn.chromium.org/blink/trunk@178225 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Don't create HitTestResult just to read the URL.

This code dates back to the original upstreaming of Chrome into WebKit.
Instead lets just expose the API surface required to complete a URL from
a link and stop creating fake HitTestRequest objects.

Review URL: https://codereview.chromium.org/391243003

git-svn-id: svn://svn.chromium.org/blink/trunk@178226 bbb929c8-8fbe-4397-9dbb-9b2b20218538