Fix first paint tracking for SPv2

third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 320 matching lines @@
       !m_client->needsRepaint(*this) && !getPaintController().cacheIsEmpty() &&
       m_previousInterestRect == *interestRect) {
     return false;
   }
 
   GraphicsContext context(getPaintController(), disabledMode, nullptr,
                           m_colorBehavior);
 
   m_previousInterestRect = *interestRect;
   m_client->paintContents(this, context, m_paintingPhase, *interestRect);
-  notifyFirstPaintToClient();
   return true;
 }
 
-void GraphicsLayer::notifyFirstPaintToClient() {
-  bool isFirstPaint = false;
-  if (!m_painted) {
-    DisplayItemList& itemList = m_paintController->newDisplayItemList();
-    for (DisplayItem& item : itemList) {
-      DisplayItem::Type type = item.getType();
-      if (type == DisplayItem::kDocumentBackground &&
-          !m_paintController->nonDefaultBackgroundColorPainted()) {
-        continue;
-      }
-      if (DisplayItem::isDrawingType(type) &&
-          static_cast<const DrawingDisplayItem&>(item).picture()) {
-        m_painted = true;
-        isFirstPaint = true;
-        break;
-      }
-    }
-  }
-  m_client->notifyPaint(isFirstPaint, m_paintController->textPainted(),
-                        m_paintController->imagePainted());
-}
-
 void GraphicsLayer::updateChildList() {
   WebLayer* childHost = m_layer->layer();
   childHost->removeAllChildren();
 
   clearContentsLayerIfUnregistered();
 
   if (m_contentsLayer) {
     // FIXME: Add the contents layer in the correct order with negative z-order
     // children. This does not currently cause visible rendering issues because
     // contents layers are only used for replaced elements that don't have
@@ skipping 978 matching lines @@
 void showGraphicsLayerTree(const blink::GraphicsLayer* layer) {
   if (!layer) {
     LOG(INFO) << "Cannot showGraphicsLayerTree for (nil).";
     return;
   }
 
   String output = layer->layerTreeAsText(blink::LayerTreeIncludesDebugInfo);
   LOG(INFO) << output.utf8().data();
 }
 #endif