Pointer Lock: Initial Tests for navigator.webkitPonter

https://bugs.webkit.org/show_bug.cgi?id=72659

Reviewed by Darin Fisher.

Tools:

* DumpRenderTree/chromium/TestShell.cpp:
(TestShell::TestShell):
    Enabling PointerLock in TestShell

LayoutTests:

* platform/efl/Skipped:
* platform/gtk/Skipped:
* platform/mac/Skipped:
* platform/qt/Skipped:
* platform/win/Skipped:
* platform/wincairo/Skipped:
* pointer-lock/mouse-event-api-expected.txt:
* pointer-lock/mouse-event-api.html:
* pointer-lock/pointer-lock-api-expected.txt:
* pointer-lock/pointer-lock-api.html:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@101025 268f45cc-cd09-0410-ab3c-d52691b4dbfc