Reviewed by Simon Fraser.

        Reduce minimum DOMTimer interval
        https://bugs.webkit.org/show_bug.cgi?id=45362

        Reduced the minimum allowed DOMTimer interval to 4ms. This has us matching Chrome,
        which hasn't had any problem with 4ms in the past 2 years, as well as increasing our
        performance on perf tests that have tight frequent loops such as canvas "animation"
        performance tests.

        No new tests added. Can't reliably instrument a test in javascript to verify that
        the minimum clamped interval time is in fact 4ms.

        * WebCore.exp.in:
        * page/DOMTimer.cpp: Removed old comments.
        * page/DOMTimer.h: Removed old comments.
        * page/Settings.cpp: Exposted new method to set minimum DOMTimer interval.
        * page/Settings.h:
2010-09-17  Matthew Delaney  <mdelaney@apple.com>

        Reviewed by Simon Fraser.

        Reduce minimum DOMTimer interval
        https://bugs.webkit.org/show_bug.cgi?id=45362

        * WebView/WebView.mm: Added in a call to set the mimimum allowed DOMTimer to 4ms.
2010-09-17  Matthew Delaney  <mdelaney@apple.com>

        Reviewed by Simon Fraser.

        Reduce minimum DOMTimer interval
        https://bugs.webkit.org/show_bug.cgi?id=45362

        * WebView.cpp: Added in a call to set the mimimum allowed DOMTimer to 4ms.
2010-09-17  Matthew Delaney  <mdelaney@apple.com>

        Reviewed by Simon Fraser.

        Reduce minimum DOMTimer interval
        https://bugs.webkit.org/show_bug.cgi?id=45362

        * WebProcess/WebPage/WebPage.cpp: Added in a call to set the mimimum allowed DOMTimer to 4ms.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@67758 268f45cc-cd09-0410-ab3c-d52691b4dbfc