Expose high-resolution on requestAnimationFrame callback

Expose high-resolution on requestAnimationFrame callback
https://bugs.webkit.org/show_bug.cgi?id=66683

This changes requestAnimationFrame's animationStartTime argument
to be a high resolution DOM timestamp, per disucssion here:
http://lists.w3.org/Archives/Public/public-web-perf/2012Apr/0004.html

Reviewed by James Robinson.

Source/WebCore:

Covered by existing requestAnimationFrame tests.

* dom/Document.cpp:
(WebCore::Document::serviceScriptedAnimations):
* dom/Document.h:
(Document):
* dom/ScriptedAnimationController.cpp:
(WebCore::ScriptedAnimationController::ScriptedAnimationController):
(WebCore::ScriptedAnimationController::serviceScriptedAnimations):
(WebCore):
(WebCore::ScriptedAnimationController::windowScreenDidChange):
(WebCore::ScriptedAnimationController::scheduleAnimation):
(WebCore::ScriptedAnimationController::animationTimerFired):
(WebCore::ScriptedAnimationController::displayRefreshFired):
* dom/ScriptedAnimationController.h:
(ScriptedAnimationController):
* page/FrameView.cpp:
(WebCore::FrameView::serviceScriptedAnimations):
* page/FrameView.h:
(FrameView):
* platform/graphics/DisplayRefreshMonitor.cpp:
(WebCore::DisplayRefreshMonitor::DisplayRefreshMonitor):
(WebCore::DisplayRefreshMonitor::notifyClients):
* platform/graphics/DisplayRefreshMonitor.h:
(DisplayRefreshMonitor):
* platform/graphics/blackberry/DisplayRefreshMonitorBlackBerry.cpp:
(WebCore::DisplayRefreshMonitor::displayLinkFired):
* platform/graphics/mac/DisplayRefreshMonitorMac.cpp:
(WebCore):
(WebCore::DisplayRefreshMonitor::requestRefreshCallback):
(WebCore::DisplayRefreshMonitor::displayLinkFired):

Source/WebKit/chromium:

* src/PageWidgetDelegate.cpp:
(WebKit::PageWidgetDelegate::animate):
* src/WebViewImpl.cpp:
(WebKit::WebViewImpl::updateAnimations):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@115525 268f45cc-cd09-0410-ab3c-d52691b4dbfc