Instrument performPostLayoutTasks and updateCompositingLayers*

Source/core/page/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 658 matching lines @@
                 RenderObject* o = rootRenderer->style()->overflowX() == OVISIBLE && isHTMLHtmlElement(document->documentElement()) ? body->renderer() : rootRenderer;
                 applyOverflowToViewport(o, hMode, vMode);
             }
         } else if (rootRenderer)
             applyOverflowToViewport(rootRenderer, hMode, vMode);
     }
 }
 
 void FrameView::updateCompositingLayersAfterStyleChange()
 {
+    TRACE_EVENT0("webkit", "FrameView::updateCompositingLayersAfterStyleChange");
     RenderView* renderView = this->renderView();
     if (!renderView)
         return;
 
     // If we expect to update compositing after an incipient layout, don't do so here.
     if (m_doingPreLayoutStyleUpdate || layoutPending() || renderView->needsLayout())
         return;
 
     // This call will make sure the cached hasAcceleratedCompositing is updated from the pref
     renderView->compositor()->cacheAcceleratedCompositingFlags();
 
     // Sometimes we will change a property (for example, z-index) that will not
     // cause a layout, but will require us to update compositing state. We only
     // need to do this if a layout is not already scheduled.
     if (!needsLayout())
         renderView->compositor()->updateCompositingRequirementsState();
 
     renderView->compositor()->updateCompositingLayers(CompositingUpdateAfterStyleChange);
 }
 
 void FrameView::updateCompositingLayersAfterLayout()
 {
+    TRACE_EVENT0("webkit", "FrameView::updateCompositingLayersAfterLayout");
     RenderView* renderView = this->renderView();
     if (!renderView)
         return;
 
     // This call will make sure the cached hasAcceleratedCompositing is updated from the pref
     renderView->compositor()->cacheAcceleratedCompositingFlags();
     renderView->compositor()->updateCompositingRequirementsState();
     renderView->compositor()->updateCompositingLayers(CompositingUpdateAfterLayout);
 }
 
@@ skipping 1430 matching lines @@
 void FrameView::flushAnyPendingPostLayoutTasks()
 {
     if (!m_postLayoutTasksTimer.isActive())
         return;
 
     performPostLayoutTasks();
 }
 
 void FrameView::performPostLayoutTasks()
 {
+    TRACE_EVENT0("webkit", "FrameView::performPostLayoutTasks");
     // updateWidgets() call below can blow us away from underneath.
     RefPtr<FrameView> protect(this);
 
     m_postLayoutTasksTimer.stop();
 
     m_frame->selection()->setCaretRectNeedsUpdate();
     m_frame->selection()->updateAppearance();
 
     LayoutMilestones milestonesOfInterest = 0;
     LayoutMilestones milestonesAchieved = 0;
@@ skipping 1165 matching lines @@
 }
 
 AXObjectCache* FrameView::axObjectCache() const
 {
     if (frame() && frame()->document())
         return frame()->document()->existingAXObjectCache();
     return 0;
 }
 
 } // namespace WebCore