Let slimmingPaintInvalidation plumbing work for spv1

third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/PaintPropertyTreePrinter.h"
 
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/layout/LayoutPart.h"
 #include "core/layout/LayoutView.h"
 #include "core/paint/ObjectPaintProperties.h"
 
 #include <iomanip>
 #include <sstream>
 
 #ifndef NDEBUG
 
 namespace blink {
 namespace {
 
 template <typename PropertyTreeNode>
 class PropertyTreePrinterTraits;
 
 template <typename PropertyTreeNode>
 class PropertyTreePrinter {
 public:
     void showTree(const FrameView& frameView)
     {
-        if (!RuntimeEnabledFeatures::slimmingPaintV2Enabled()) {
-            LOG(ERROR) << "This is for slimmingPaintV2 only";
-            return;
-        }
+        DCHECK(RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
         collectPropertyNodes(frameView);
         showAllPropertyNodes(nullptr);
     }
 
     void showPath(const PropertyTreeNode* node)
     {
         for (const PropertyTreeNode* n = node; n; n = n->parent())
             addPropertyNode(n, "");
         showAllPropertyNodes(nullptr);
     }
@@ skipping 485 matching lines @@
 
 String paintPropertyTreeGraph(const blink::FrameView& frameView)
 {
     blink::PaintPropertyTreeGraphBuilder builder;
     StringBuilder stringBuilder;
     builder.generateTreeGraph(frameView, stringBuilder);
     return stringBuilder.toString();
 }
 
 #endif