One AXObjectCache per frame

third_party/WebKit/Source/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 203 matching lines @@
     m_visuallyNonEmptyCharacterCount = 0;
     m_visuallyNonEmptyPixelCount = 0;
     m_isVisuallyNonEmpty = false;
     clearScrollAnchor();
     m_viewportConstrainedObjects.clear();
     m_layoutSubtreeRootList.clear();
 }
 
 void FrameView::removeFromAXObjectCache()
 {
-    if (AXObjectCache* cache = axObjectCache()) {
-        cache->remove(this);
+    if (AXObjectCache* cache = axObjectCache())
         cache->childrenChanged(m_frame->pagePopupOwner());
-    }
 }
 
 void FrameView::init()
 {
     reset();
 
     m_size = LayoutSize();
 
     // Propagate the marginwidth/height and scrolling modes to the view.
     // FIXME: Do we need to do this for OOPI?
@@ skipping 2714 matching lines @@
         if (document->isActive())
             document->notifyResizeForViewportUnits();
     }
 
     contentsResized();
 }
 
 void FrameView::didAddScrollbar(Scrollbar* scrollbar, ScrollbarOrientation orientation)
 {
     ScrollableArea::didAddScrollbar(scrollbar, orientation);
-    if (AXObjectCache* cache = axObjectCache())
-        cache->handleScrollbarUpdate(this);
 }
 
 void FrameView::setTopControlsViewportAdjustment(float adjustment)
 {
     m_topControlsViewportAdjustment = adjustment;
 }
 
 IntPoint FrameView::maximumScrollPosition() const
 {
     // Make the same calculation as in CC's LayerImpl::MaxScrollOffset()
@@ skipping 17 matching lines @@
     if (hasBar == !!m_horizontalScrollbar)
         return;
 
     if (hasBar) {
         m_horizontalScrollbar = createScrollbar(HorizontalScrollbar);
         addChild(m_horizontalScrollbar.get());
         didAddScrollbar(m_horizontalScrollbar.get(), HorizontalScrollbar);
         m_horizontalScrollbar->styleChanged();
     } else {
         willRemoveScrollbar(m_horizontalScrollbar.get(), HorizontalScrollbar);
-        if (AXObjectCache* cache = axObjectCache())
-            cache->remove(m_horizontalScrollbar.get());
         // If the scrollbar has been marked as overlapping the window resizer,
         // then its removal should reduce the count.
         if (m_horizontalScrollbar->overlapsResizer())
             adjustScrollbarsAvoidingResizerCount(-1);
         removeChild(m_horizontalScrollbar.get());
         m_horizontalScrollbar->disconnectFromScrollableArea();
         m_horizontalScrollbar = nullptr;
-        if (AXObjectCache* cache = axObjectCache())
-            cache->handleScrollbarUpdate(this);
     }
 
     invalidateScrollCorner(scrollCornerRect());
 }
 
 void FrameView::setHasVerticalScrollbar(bool hasBar)
 {
     if (hasBar == !!m_verticalScrollbar)
         return;
 
     if (hasBar) {
         m_verticalScrollbar = createScrollbar(VerticalScrollbar);
         addChild(m_verticalScrollbar.get());
         didAddScrollbar(m_verticalScrollbar.get(), VerticalScrollbar);
         m_verticalScrollbar->styleChanged();
     } else {
         willRemoveScrollbar(m_verticalScrollbar.get(), VerticalScrollbar);
-        if (AXObjectCache* cache = axObjectCache())
-            cache->remove(m_verticalScrollbar.get());
         // If the scrollbar has been marked as overlapping the window resizer,
         // then its removal should reduce the count.
         if (m_verticalScrollbar->overlapsResizer())
             adjustScrollbarsAvoidingResizerCount(-1);
         removeChild(m_verticalScrollbar.get());
         m_verticalScrollbar->disconnectFromScrollableArea();
         m_verticalScrollbar = nullptr;
-        if (AXObjectCache* cache = axObjectCache())
-            cache->handleScrollbarUpdate(this);
     }
 
     invalidateScrollCorner(scrollCornerRect());
 }
 
 void FrameView::setScrollbarModes(ScrollbarMode horizontalMode, ScrollbarMode verticalMode,
     bool horizontalLock, bool verticalLock)
 {
     bool needsUpdate = false;
 
@@ skipping 864 matching lines @@
 
     if (!graphicsLayer)
         return;
 
     DeprecatedPaintLayer::mapRectToPaintInvalidationBacking(localFrame->contentLayoutObject(), paintInvalidationContainer, viewRect);
 
     graphicsLayerTimingRequests.add(graphicsLayer, Vector<std::pair<int64_t, WebRect>>()).storedValue->value.append(std::make_pair(m_frame->frameID(), enclosingIntRect(viewRect)));
 }
 
 } // namespace blink