Mark correct tree-scope dirty removing link in shadow.

third_party/WebKit/Source/core/dom/ProcessingInstruction.cpp

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2006, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 251 matching lines @@
     process(href, charset);
   return InsertionDone;
 }
 
 void ProcessingInstruction::removedFrom(ContainerNode* insertionPoint) {
   CharacterData::removedFrom(insertionPoint);
   if (!insertionPoint->isConnected())
     return;
 
   // No need to remove XSLStyleSheet from StyleEngine.
-  if (!DocumentXSLT::processingInstructionRemovedFromDocument(document(), this))
-    document().styleEngine().removeStyleSheetCandidateNode(*this);
+  if (!DocumentXSLT::processingInstructionRemovedFromDocument(document(),
+                                                              this)) {
+    document().styleEngine().removeStyleSheetCandidateNode(*this,
+                                                           *insertionPoint);
+  }
 
   StyleSheet* removedSheet = m_sheet;
   if (m_sheet) {
     DCHECK_EQ(m_sheet->ownerNode(), this);
     clearSheet();
   }
 
   // No need to remove pending sheets.
   clearResource();
 
@@ skipping 12 matching lines @@
 }
 
 DEFINE_TRACE(ProcessingInstruction) {
   visitor->trace(m_sheet);
   visitor->trace(m_listenerForXSLT);
   CharacterData::trace(visitor);
   ResourceOwner<StyleSheetResource>::trace(visitor);
 }
 
 }  // namespace blink