Add GraphicsLayerDebugInfo::includesNewPaintInvalidation to distinguish paint from new RenderObjects

Source/platform/graphics/GraphicsLayerDebugInfo.cpp

Index: Source/platform/graphics/GraphicsLayerDebugInfo.cpp
diff --git a/Source/platform/graphics/GraphicsLayerDebugInfo.cpp b/Source/platform/graphics/GraphicsLayerDebugInfo.cpp
index 0bc8464abb5958e0e265c29e5c3f1827fdf9b85d..493684da21504da1ac77fe9e2d8e33925e20e0cc 100644
--- a/Source/platform/graphics/GraphicsLayerDebugInfo.cpp
+++ b/Source/platform/graphics/GraphicsLayerDebugInfo.cpp
@@ -27,6 +27,7 @@ namespace blink {
 
 GraphicsLayerDebugInfo::GraphicsLayerDebugInfo()
     : m_compositingReasons(CompositingReasonNone)
+    , m_includesFirstPaintInvalidation(false)
 {
 }
 
@@ -42,6 +43,11 @@ void GraphicsLayerDebugInfo::appendAsTraceFormat(WebString* out) const
     *out = jsonObject->toJSONString();
 }
 
+bool GraphicsLayerDebugInfo::includesFirstPaintInvalidation() const
+{
+    return m_includesFirstPaintInvalidation;
+}
+
 GraphicsLayerDebugInfo* GraphicsLayerDebugInfo::clone() const
 {
     GraphicsLayerDebugInfo* toReturn = new GraphicsLayerDebugInfo();