Merge 95259 - Fragment navigations should interrupt a provisional load of a different document

Merge 95259 - Fragment navigations should interrupt a provisional load of a different document
https://bugs.webkit.org/show_bug.cgi?id=64556

Source/WebCore:

Reviewed by Adam Barth.

Tests: http/tests/history/back-with-fragment-change.php
       http/tests/navigation/navigation-interrupted-by-fragment.html

* loader/FrameLoader.cpp: Stop provisional load if a fragment commits.
* loader/HistoryController.cpp: Don't commit the wrong provisional item.

LayoutTests:

Reviewed by Adam Barth.

Required page-dismissal-modal-dialogs-iframe.html to be updated since
the dummy <a href="#"> link was clicked after the provisional load was
kicked off, thus causing it to to be aborted.

* fast/loader/page-dismissal-modal-dialogs.html:
* fast/loader/resources/page-dismissal-modal-dialogs-iframe.html:
* http/tests/history/back-with-fragment-change-expected.txt: Added.
* http/tests/history/back-with-fragment-change.php: Added.
* http/tests/history/resources/back-with-fragment-change-target.html: Added.
* http/tests/navigation/navigation-interrupted-by-fragment-expected.txt: Added.
* http/tests/navigation/navigation-interrupted-by-fragment.html: Added.


TBR=mihaip@chromium.org
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=95561