Trace LayoutObject src attributes and parent frames

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 89 matching lines @@
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/graphics/GraphicsLayerDebugInfo.h"
 #include "platform/graphics/paint/CullRect.h"
 #include "platform/graphics/paint/PaintController.h"
 #include "platform/scheduler/CancellableTaskFactory.h"
 #include "platform/scroll/ScrollAnimatorBase.h"
 #include "platform/scroll/ScrollbarTheme.h"
 #include "platform/text/TextStream.h"
 #include "public/platform/WebDisplayItemList.h"
 #include "public/platform/WebFrameScheduler.h"
+#include "public/web/WebLocalFrame.h"
+#include "web/WebLocalFrameImpl.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/TemporaryChange.h"
 
 namespace blink {
 
 using namespace HTMLNames;
 
 // The maximum number of updateWidgets iterations that should be done before returning.
 static const unsigned maxUpdateWidgetsIterations = 2;
@@ skipping 835 matching lines @@
     bool inSubtreeLayout = isSubtreeLayout();
 
     // FIXME: The notion of a single root for layout is no longer applicable. Remove or update this code. crbug.com/460596
     LayoutItem rootForThisLayout(inSubtreeLayout ? m_layoutSubtreeRootList.randomRoot() : layoutView());
     if (!rootForThisLayout) {
         // FIXME: Do we need to set m_size here?
         ASSERT_NOT_REACHED();
         return;
     }
 
+    WebLocalFrame* wlframe = WebLocalFrameImpl::fromFrame(frame());
+
     FontCachePurgePreventer fontCachePurgePreventer;
     {
         TemporaryChange<bool> changeSchedulingEnabled(m_layoutSchedulingEnabled, false);
 
         m_nestedLayoutCount++;
         if (!inSubtreeLayout) {
             clearLayoutSubtreeRootsAndMarkContainingBlocks();
             Node* body = document->body();
             if (body && body->layoutObject()) {
                 if (isHTMLFrameSetElement(*body)) {
@@ skipping 49 matching lines @@
                     bodyLayoutObject->setChildNeedsLayout();
                 else if (rootLayoutObject && rootLayoutObject->stretchesToViewport())
                     rootLayoutObject->setChildNeedsLayout();
             }
 
             // We need to set m_doFullPaintInvalidation before triggering layout as LayoutObject::checkForPaintInvalidation
             // checks the boolean to disable local paint invalidations.
             m_doFullPaintInvalidation |= layoutView()->shouldDoFullPaintInvalidationForNextLayout();
         }
 
         TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID(TRACE_DISABLED_BY_DEFAULT("blink.debug.layout"), "LayoutTree",

[benjhayden, 2016/06/03 18:12:28]

comment out for puf

-            this, TracedLayoutObject::create(*layoutView(), false));
+            TRACE_ID_WITH_SCOPE("LayoutTree", wlframe),
+            TracedLayoutObject::create(*layoutView(), false));
 
         performLayout(inSubtreeLayout);
 
         ASSERT(m_layoutSubtreeRootList.isEmpty());
     } // Reset m_layoutSchedulingEnabled to its previous value.
 
     if (!inSubtreeLayout && !document->printing())
         adjustViewSize();
 
     m_frameTimingRequestsDirty = true;
 
     // FIXME: Could find the common ancestor layer of all dirty subtrees and mark from there. crbug.com/462719
     layoutView()->enclosingLayer()->updateLayerPositionsAfterLayout();
 
     TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID(TRACE_DISABLED_BY_DEFAULT("blink.debug.layout"), "LayoutTree",
-        this, TracedLayoutObject::create(*layoutView(), true));
+        TRACE_ID_WITH_SCOPE("LayoutTree", wlframe),
+        TracedLayoutObject::create(*layoutView(), true));
 
     layoutViewItem().compositor()->didLayout();
 
     m_layoutCount++;
 
     if (AXObjectCache* cache = document->axObjectCache()) {
         const KURL& url = document->url();
         if (url.isValid() && !url.isAboutBlankURL())
             cache->handleLayoutComplete(document);
     }
@@ skipping 3043 matching lines @@
     return m_subtreeThrottled || (m_hiddenForThrottling && m_crossOriginForThrottling);
 }
 
 LayoutBox& FrameView::boxForScrollControlPaintInvalidation() const
 {
     ASSERT(layoutView());
     return *layoutView();
 }
 
 } // namespace blink