Move property tree debugging code to platform/graphics/paint/ (try #2)

third_party/WebKit/Source/platform/graphics/paint/EffectPaintPropertyNode.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 "platform/graphics/paint/EffectPaintPropertyNode.h"
 
+#include "platform/graphics/paint/PropertyTreeState.h"
+
 namespace blink {
 
 EffectPaintPropertyNode* EffectPaintPropertyNode::root() {
   DEFINE_STATIC_REF(
       EffectPaintPropertyNode, root,
       (EffectPaintPropertyNode::create(
           nullptr, TransformPaintPropertyNode::root(),
           ClipPaintPropertyNode::root(), CompositorFilterOperations(), 1.0,
           SkBlendMode::kSrcOver)));
   return root;
@@ skipping 10 matching lines @@
   return String::format(
       "parent=%p localTransformSpace=%p outputClip=%p opacity=%f filter=%s "
       "blendMode=%s directCompositingReasons=%s compositorElementId=(%d, %d)",
       m_parent.get(), m_localTransformSpace.get(), m_outputClip.get(),
       m_opacity, m_filter.toString().ascii().data(),
       SkBlendMode_Name(m_blendMode),
       compositingReasonsAsString(m_directCompositingReasons).ascii().data(),
       m_compositorElementId.primaryId, m_compositorElementId.secondaryId);
 }
 
+#if DCHECK_IS_ON()
+
+String EffectPaintPropertyNode::toTreeString() const {
+  return blink::PropertyTreeStatePrinter<blink::EffectPaintPropertyNode>()
+      .pathAsString(this);
+}
+
+#endif
+
 }  // namespace blink