Switch AutoscrollController to use animation system instead of timer

Source/web/PageWidgetDelegate.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "PageWidgetDelegate.h"
 
 #include "PageOverlayList.h"
 #include "WebInputEvent.h"
 #include "WebInputEventConversion.h"
+#include "core/page/AutoscrollController.h"
 #include "core/page/EventHandler.h"
 #include "core/frame/Frame.h"
 #include "core/frame/FrameView.h"
 #include "core/platform/graphics/GraphicsContext.h"
 #include "wtf/CurrentTime.h"
 
 using namespace WebCore;
 
 namespace WebKit {
 
 static inline FrameView* mainFrameView(Page* page)
 {
     if (!page)
         return 0;
     // FIXME: Can we remove this check?
     if (!page->mainFrame())
         return 0;
     return page->mainFrame()->view();
 }
 
 void PageWidgetDelegate::animate(Page* page, double monotonicFrameBeginTime)
 {
     FrameView* view = mainFrameView(page);
     if (!view)
         return;
+    page->autoscrollController().animate(monotonicFrameBeginTime);
     view->serviceScriptedAnimations(monotonicFrameBeginTime);
 }
 
 void PageWidgetDelegate::layout(Page* page)
 {
     FrameView* view = mainFrameView(page);
     if (!view)
         return;
     // In order for our child HWNDs (NativeWindowWidgets) to update properly,
     // they need to be told that we are updating the screen. The problem is that
@@ skipping 137 matching lines @@
 {
     return mainFrame.eventHandler().handleWheelEvent(PlatformWheelEventBuilder(mainFrame.view(), event));
 }
 
 bool PageWidgetEventHandler::handleTouchEvent(Frame& mainFrame, const WebTouchEvent& event)
 {
     return mainFrame.eventHandler().handleTouchEvent(PlatformTouchEventBuilder(mainFrame.view(), event));
 }
 
 }