Change layerTreeAsText to default to layer lists.

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 587 matching lines @@
 
 static String pointerAsString(const void* ptr) {
   TextStream ts;
   ts << ptr;
   return ts.release();
 }
 
 std::unique_ptr<JSONObject> GraphicsLayer::layerTreeAsJSON(
     LayerTreeFlags flags) const {
   RenderingContextMap renderingContextMap;
-  if (flags & OutputChildrenAsLayerList) {
-    std::unique_ptr<JSONObject> json = JSONObject::create();
-    std::unique_ptr<JSONArray> layersArray = JSONArray::create();
-    for (auto& child : m_children)
-      child->layersAsJSONArray(flags, renderingContextMap, layersArray.get());
-    json->setArray("layers", std::move(layersArray));
-    return json;
-  }
-  return layerTreeAsJSONInternal(flags, renderingContextMap);
+  if (flags & OutputAsLayerTree)
+    return layerTreeAsJSONInternal(flags, renderingContextMap);
+  std::unique_ptr<JSONObject> json = JSONObject::create();
+  std::unique_ptr<JSONArray> layersArray = JSONArray::create();
+  for (auto& child : m_children)
+    child->layersAsJSONArray(flags, renderingContextMap, layersArray.get());
+  json->setArray("layers", std::move(layersArray));
+  return json;
 }
 
 std::unique_ptr<JSONObject> GraphicsLayer::layerAsJSONInternal(
     LayerTreeFlags flags,
     RenderingContextMap& renderingContextMap) const {
   std::unique_ptr<JSONObject> json = JSONObject::create();
 
   if (flags & LayerTreeIncludesDebugInfo)
     json->setString("this", pointerAsString(this));
 
@@ skipping 648 matching lines @@
 void showGraphicsLayerTree(const blink::GraphicsLayer* layer) {
   if (!layer) {
     fprintf(stderr, "Cannot showGraphicsLayerTree for (nil).\n");
     return;
   }
 
   String output = layer->layerTreeAsText(blink::LayerTreeIncludesDebugInfo);
   fprintf(stderr, "%s\n", output.utf8().data());
 }
 #endif