Add GraphicsLayerDebugInfo::includesNewPaintInvalidation to distinguish paint from new RenderObjects

Source/platform/graphics/GraphicsLayerDebugInfo.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 
 #include "platform/graphics/GraphicsLayerDebugInfo.h"
 
 #include "wtf/text/CString.h"
 
 namespace blink {
 
 GraphicsLayerDebugInfo::GraphicsLayerDebugInfo()
     : m_compositingReasons(CompositingReasonNone)
+    , m_includesFirstPaintInvalidation(false)
 {
 }
 
 GraphicsLayerDebugInfo::~GraphicsLayerDebugInfo() { }
 
 void GraphicsLayerDebugInfo::appendAsTraceFormat(WebString* out) const
 {
     RefPtr<JSONObject> jsonObject = JSONObject::create();
     appendLayoutRects(jsonObject.get());
     appendCompositingReasons(jsonObject.get());
     appendDebugName(jsonObject.get());
     appendOwnerNodeId(jsonObject.get());
     *out = jsonObject->toJSONString();
 }
 
+bool GraphicsLayerDebugInfo::includesFirstPaintInvalidation() const
+{
+    return m_includesFirstPaintInvalidation;
+}
+
 GraphicsLayerDebugInfo* GraphicsLayerDebugInfo::clone() const
 {
     GraphicsLayerDebugInfo* toReturn = new GraphicsLayerDebugInfo();
     for (size_t i = 0; i < m_currentLayoutRects.size(); ++i)
         toReturn->currentLayoutRects().append(m_currentLayoutRects[i]);
     toReturn->setCompositingReasons(m_compositingReasons);
     toReturn->setOwnerNodeId(m_ownerNodeId);
     return toReturn;
 }
 
@@ skipping 35 matching lines @@
 
 void GraphicsLayerDebugInfo::appendOwnerNodeId(JSONObject* jsonObject) const
 {
     if (!m_ownerNodeId)
         return;
 
     jsonObject->setNumber("owner_node", m_ownerNodeId);
 }
 
 } // namespace blink