Revert of Move property tree debugging code to platform/graphics/paint/.

third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h

Index: third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h
diff --git a/third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h b/third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h
index 698ba60632557f44a8f4b104f59737bb162a99f3..19555592996153b78883df9520f1af9cc9f6b1c2 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h
+++ b/third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h
@@ -11,7 +11,6 @@
 #include "platform/graphics/paint/TransformPaintPropertyNode.h"
 #include "wtf/HashFunctions.h"
 #include "wtf/HashTraits.h"
-#include "wtf/text/StringBuilder.h"
 
 namespace blink {
 
@@ -113,11 +112,6 @@
   // DCHECK(iterator.next()->innermostNode() == None);
   InnermostNode innermostNode() const;
 
-#if DCHECK_IS_ON()
-  // Dumps the tree from this state up to the root as a string.
-  String toTreeString() const;
-#endif
-
  private:
   RefPtr<const TransformPaintPropertyNode> m_transform;
   RefPtr<const ClipPaintPropertyNode> m_clip;
@@ -145,50 +139,6 @@
   PropertyTreeState m_properties;
 };
 
-#if DCHECK_IS_ON()
-
-template <typename PropertyTreeNode>
-class PropertyTreeStatePrinter {
- public:
-  String pathAsString(const PropertyTreeNode* lastNode) {
-    const PropertyTreeNode* node = lastNode;
-    while (!node->isRoot()) {
-      addPropertyNode(node, "");
-      node = node->parent();
-    }
-
-    StringBuilder stringBuilder;
-    addAllPropertyNodes(stringBuilder, node);
-    return stringBuilder.toString();
-  }
-
-  void addPropertyNode(const PropertyTreeNode* node, String debugInfo) {
-    m_nodeToDebugString.set(node, debugInfo);
-  }
-
-  void addAllPropertyNodes(StringBuilder& stringBuilder,
-                           const PropertyTreeNode* node,
-                           unsigned indent = 0) {
-    DCHECK(node);
-    for (unsigned i = 0; i < indent; i++)
-      stringBuilder.append(' ');
-    if (m_nodeToDebugString.contains(node))
-      stringBuilder.append(m_nodeToDebugString.get(node));
-    stringBuilder.append(String::format(" %p ", node));
-    stringBuilder.append(node->toString());
-    stringBuilder.append("\n");
-
-    for (const auto* childNode : m_nodeToDebugString.keys()) {
-      if (childNode->parent() == node)
-        addAllPropertyNodes(stringBuilder, childNode, indent + 2);
-    }
-  }
-
-  HashMap<const PropertyTreeNode*, String> m_nodeToDebugString;
-};
-
-#endif
-
 }  // namespace blink
 
 #endif  // PropertyTreeState_h