[Layout API] Add viewRect() to LayoutViewItem and use it in FrameView

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 3941 matching lines @@
     }
     m_frameTimingRequestsDirty = false;
 }
 
 void FrameView::collectFrameTimingRequests(GraphicsLayerFrameTimingRequests& graphicsLayerTimingRequests)
 {
     if (!m_frame->isLocalFrame())
         return;
     Frame* frame = m_frame.get();
     LocalFrame* localFrame = toLocalFrame(frame);
-    LayoutRect viewRect = localFrame->contentLayoutObject()->viewRect();
+    LayoutRect viewRect = localFrame->contentLayoutItem().viewRect();
     const LayoutBoxModelObject& paintInvalidationContainer = localFrame->contentLayoutObject()->containerForPaintInvalidation();
     // If the frame is being throttled, its compositing state may not be up to date.
     if (!paintInvalidationContainer.enclosingLayer()->isAllowedToQueryCompositingState())
         return;
     const GraphicsLayer* graphicsLayer = paintInvalidationContainer.enclosingLayer()->graphicsLayerBacking();
 
     if (!graphicsLayer)
         return;
 
     PaintLayer::mapRectToPaintInvalidationBacking(*localFrame->contentLayoutObject(), paintInvalidationContainer, viewRect);
@@ skipping 119 matching lines @@
     return m_hiddenForThrottling && m_crossOriginForThrottling;
 }
 
 LayoutBox& FrameView::boxForScrollControlPaintInvalidation() const
 {
     ASSERT(layoutView());
     return *layoutView();
 }
 
 } // namespace blink