Get rid of slow repaint objects and main thread scrolling reasons.

sky/engine/core/frame/FrameView.cpp

Index: sky/engine/core/frame/FrameView.cpp
diff --git a/sky/engine/core/frame/FrameView.cpp b/sky/engine/core/frame/FrameView.cpp
index 687e8ea040f4ebd19271a1dc1f6ac4093f0ccccd..901dbb0e020db833f4aef60ee3bff9b65a6574a8 100644
--- a/sky/engine/core/frame/FrameView.cpp
+++ b/sky/engine/core/frame/FrameView.cpp
@@ -75,7 +75,6 @@ static const double resourcePriorityUpdateDelayAfterScroll = 0.250;
 FrameView::FrameView(LocalFrame* frame)
     : m_frame(frame)
     , m_canHaveScrollbars(true)
-    , m_slowRepaintObjectCount(0)
     , m_hasPendingLayout(false)
     , m_layoutSubtreeRoot(0)
     , m_inSynchronousPostLayout(false)
@@ -691,28 +690,6 @@ bool FrameView::contentsInCompositedLayer() const
     return false;
 }
 
-void FrameView::addSlowRepaintObject()
-{
-    if (!m_slowRepaintObjectCount++) {
-        if (Page* page = m_frame->page()) {
-            if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator())
-                scrollingCoordinator->frameViewHasSlowRepaintObjectsDidChange(this);
-        }
-    }
-}
-
-void FrameView::removeSlowRepaintObject()
-{
-    ASSERT(m_slowRepaintObjectCount > 0);
-    m_slowRepaintObjectCount--;
-    if (!m_slowRepaintObjectCount) {
-        if (Page* page = m_frame->page()) {
-            if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator())
-                scrollingCoordinator->frameViewHasSlowRepaintObjectsDidChange(this);
-        }
-    }
-}
-
 IntPoint FrameView::lastKnownMousePosition() const
 {
     return m_frame->eventHandler().lastKnownMousePosition();