Remove viewportConstrained plumbing.

sky/engine/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 133 matching lines @@
     m_firstLayout = true;
     m_firstLayoutCallbackPending = false;
     m_wasScrolledByUser = false;
     m_lastViewportSize = IntSize();
     m_lastZoomFactor = 1.0f;
     m_isTrackingPaintInvalidations = false;
     m_trackedPaintInvalidationRects.clear();
     m_lastPaintTime = 0;
     m_paintBehavior = PaintBehaviorNormal;
     m_isPainting = false;
-    m_viewportConstrainedObjects.clear();
 }
 
 void FrameView::init()
 {
     reset();
 
     m_size = LayoutSize();
 }
 
 void FrameView::prepareForDetach()
@@ skipping 33 matching lines @@
     IntRect oldRect = frameRect();
     if (newRect == oldRect)
         return;
 
     Widget::setFrameRect(newRect);
 
     if (RenderView* renderView = this->renderView()) {
         if (renderView->usesCompositing())
             renderView->compositor()->frameViewDidChangeSize();
     }
-
-    viewportConstrainedVisibleContentSizeChanged(newRect.width() != oldRect.width(), newRect.height() != oldRect.height());
 }
 
 Page* FrameView::page() const
 {
     return frame().page();
 }
 
 RenderView* FrameView::renderView() const
 {
     return frame().contentRenderer();
@@ skipping 489 matching lines @@
     ASSERT(m_slowRepaintObjectCount > 0);
     m_slowRepaintObjectCount--;
     if (!m_slowRepaintObjectCount) {
         if (Page* page = m_frame->page()) {
             if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator())
                 scrollingCoordinator->frameViewHasSlowRepaintObjectsDidChange(this);
         }
     }
 }
 
-void FrameView::addViewportConstrainedObject(RenderObject* object)
-{
-    if (!m_viewportConstrainedObjects)
-        m_viewportConstrainedObjects = adoptPtr(new ViewportConstrainedObjectSet);
-
-    if (!m_viewportConstrainedObjects->contains(object)) {
-        m_viewportConstrainedObjects->add(object);
-
-        if (Page* page = m_frame->page()) {
-            if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator())
-                scrollingCoordinator->frameViewFixedObjectsDidChange(this);
-        }
-    }
-}
-
-void FrameView::removeViewportConstrainedObject(RenderObject* object)
-{
-    if (m_viewportConstrainedObjects && m_viewportConstrainedObjects->contains(object)) {
-        m_viewportConstrainedObjects->remove(object);
-
-        if (Page* page = m_frame->page()) {
-            if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator())
-                scrollingCoordinator->frameViewFixedObjectsDidChange(this);
-        }
-    }
-}
-
-void FrameView::viewportConstrainedVisibleContentSizeChanged(bool widthChanged, bool heightChanged)
-{
-    // FIXME(sky): Remove
-}
-
 IntPoint FrameView::lastKnownMousePosition() const
 {
     return m_frame->eventHandler().lastKnownMousePosition();
 }
 
 bool FrameView::shouldSetCursor() const
 {
     Page* page = frame().page();
     return page && page->visibilityState() != PageVisibilityStateHidden && page->focusController().isActive() && page->settings().deviceSupportsMouse();
 }
@@ skipping 56 matching lines @@
     m_didScrollTimer.startOneShot(resourcePriorityUpdateDelayAfterScroll, FROM_HERE);
 }
 
 void FrameView::didScrollTimerFired(Timer<FrameView>*)
 {
     if (m_frame->document() && m_frame->document()->renderView()) {
         ResourceLoadPriorityOptimizer::resourceLoadPriorityOptimizer()->updateAllImageResourcePriorities();
     }
 }
 
-void FrameView::updateLayersAndCompositingAfterScrollIfNeeded()
-{
-    // Nothing to do after scrolling if there are no fixed position elements.
-    if (!hasViewportConstrainedObjects())
-        return;
-
-    RefPtr<FrameView> protect(this);
-
-    // If there fixed position elements, scrolling may cause compositing layers to change.
-    // Update widget and layer positions after scrolling, but only if we're not inside of
-    // layout.
-    if (!m_nestedLayoutCount) {
-        updateWidgetPositions();
-        if (RenderView* renderView = this->renderView())
-            renderView->layer()->setNeedsCompositingInputsUpdate();
-    }
-}
-
-void FrameView::updateFixedElementPaintInvalidationRectsAfterScroll()
-{
-    // FIXME(sky): Remove
-}
-
 void FrameView::updateCompositedSelectionBoundsIfNeeded()
 {
     if (!RuntimeEnabledFeatures::compositedSelectionUpdatesEnabled())
         return;
 
     Page* page = frame().page();
     ASSERT(page);
 
     LocalFrame* frame = page->focusController().focusedOrMainFrame();
     if (!frame || !frame->selection().isCaretOrRange()) {
@@ skipping 756 matching lines @@
 void FrameView::setLayoutSizeInternal(const IntSize& size)
 {
     if (m_layoutSize == size)
         return;
 
     m_layoutSize = size;
     contentsResized();
 }
 
 } // namespace blink