Fix first paint tracking for SPv2

third_party/WebKit/Source/core/paint/PaintLayer.h

Index: third_party/WebKit/Source/core/paint/PaintLayer.h
diff --git a/third_party/WebKit/Source/core/paint/PaintLayer.h b/third_party/WebKit/Source/core/paint/PaintLayer.h
index 3c9cec07bd13405a171dc8eb4d084ea90fe07ad9..d0605ac22545c097536d56a32ec01b76ce941b0f 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayer.h
+++ b/third_party/WebKit/Source/core/paint/PaintLayer.h
@@ -72,7 +72,6 @@ class FilterOperations;
 class HitTestResult;
 class HitTestingTransformState;
 class PaintLayerCompositor;
-class PaintTiming;
 class TransformationMatrix;
 
 enum IncludeSelfOrNot { IncludeSelf, ExcludeSelf };
@@ -971,8 +970,6 @@ class CORE_EXPORT PaintLayer : public DisplayItemClient {
     m_previousPaintPhaseDescendantBlockBackgroundsWasEmpty = isEmpty;
   }
 
-  PaintTiming* paintTiming();
-
   ClipRectsCache* clipRectsCache() const { return m_clipRectsCache.get(); }
   ClipRectsCache& ensureClipRectsCache() const {
     if (!m_clipRectsCache)