Remove painting roots.

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 649 matching lines @@
 {
     paintContents(context, rect);
 }
 
 void FrameView::paintContents(GraphicsContext* p, const IntRect& rect)
 {
 #ifndef NDEBUG
     bool fillWithRed;
     if (isTransparent())
         fillWithRed = false; // Transparent, don't fill with red.
-    else if (m_nodeToDraw)
-        fillWithRed = false; // Element images are transparent, don't fill with red.
     else
         fillWithRed = true;
 
     if (fillWithRed)
         p->fillRect(rect, Color(0xFF, 0, 0));
 #endif
 
     RenderView* renderView = this->renderView();
     if (!renderView) {
         WTF_LOG_ERROR("called FrameView::paint with nil renderer");
         return;
     }
 
     RELEASE_ASSERT(!needsLayout());
     ASSERT(m_frame->document()->lifecycle().state() >= DocumentLifecycle::StyleAndLayoutClean);
 
     TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "Paint", "data", InspectorPaintEvent::data(renderView, rect));
     TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline.stack"), "CallStack", TRACE_EVENT_SCOPE_PROCESS, "stack", InspectorCallStackEvent::currentCallStack());
 
     bool isTopLevelPainter = !s_inPaintContents;
     s_inPaintContents = true;
 
     FontCachePurgePreventer fontCachePurgePreventer;
 
     ASSERT(!m_isPainting);
     m_isPainting = true;
 
-    // m_nodeToDraw is used to draw only one element (and its descendants)
-    RenderObject* renderer = m_nodeToDraw ? m_nodeToDraw->renderer() : 0;
     RenderLayer* rootLayer = renderView->layer();
 
 #if ENABLE(ASSERT)
     renderView->assertSubtreeIsLaidOut();
     RenderObject::SetLayoutNeededForbiddenScope forbidSetNeedsLayout(*rootLayer->renderer());
 #endif
 
-    rootLayer->paint(p, rect, renderer);
+    rootLayer->paint(p, rect);
 
     m_isPainting = false;
     m_lastPaintTime = currentTime();
 
     if (isTopLevelPainter) {
         // Everything that happens after paintContents completions is considered
         // to be part of the next frame.
         s_currentFrameTimeStamp = currentTime();
         s_inPaintContents = false;
     }
 }
 
 bool FrameView::isPainting() const
 {
     return m_isPainting;
 }
 
-void FrameView::setNodeToDraw(Node* node)
-{
-    m_nodeToDraw = node;
-}
-
 void FrameView::updateLayoutAndStyleForPainting()
 {
     // Updating layout can run script, which can tear down the FrameView.
     RefPtr<FrameView> protector(this);
 
     updateLayoutAndStyleIfNeededRecursive();
 
     if (RenderView* view = renderView()) {
         TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "updateIFramesAfterLayout", TRACE_EVENT_SCOPE_PROCESS, "frame", m_frame.get());
         view->updateIFramesAfterLayout();
@@ skipping 101 matching lines @@
     totalObjects = 0;
 
     for (RenderObject* o = root; o; o = o->nextInPreOrder(root)) {
         ++totalObjects;
         if (o->needsLayout())
             ++needsLayoutObjects;
     }
 }
 
 } // namespace blink