Rename DisplayItem::Type enum constants to Chromium style.

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 368 matching lines @@
     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 (DisplayItem::isDrawingType(type) && type != DisplayItem::DocumentBackground && static_cast<const DrawingDisplayItem&>(item).picture()) {
+            if (DisplayItem::isDrawingType(type) && type != DisplayItem::kDocumentBackground && 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()
@@ skipping 951 matching lines @@
 {
     if (!layer) {
         fprintf(stderr, "Cannot showGraphicsLayerTree for (nil).\n");
         return;
     }
 
     String output = layer->layerTreeAsText(blink::LayerTreeIncludesDebugInfo);
     fprintf(stderr, "%s\n", output.utf8().data());
 }
 #endif