Make /deep/ as no-op and remove ::shadow in dynamic profile

third_party/WebKit/Source/core/css/CSSPageRule.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2005, 2006, 2008, 2012 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.
  *
@@ skipping 40 matching lines @@
     if (!page_specification.IsEmpty())
       text.Append(page_specification);
   }
   return text.ToString();
 }
 
 void CSSPageRule::setSelectorText(const String& selector_text) {
   CSSParserContext* context =
       CSSParserContext::Create(ParserContext(), nullptr);
   CSSSelectorList selector_list = CSSParser::ParsePageSelector(
-      context, parentStyleSheet() ? parentStyleSheet()->Contents() : nullptr,
+      *context, parentStyleSheet() ? parentStyleSheet()->Contents() : nullptr,
       selector_text);
   if (!selector_list.IsValid())
     return;
 
   CSSStyleSheet::RuleMutationScope mutation_scope(this);
 
   page_rule_->WrapperAdoptSelectorList(std::move(selector_list));
 }
 
 String CSSPageRule::cssText() const {
@@ skipping 19 matching lines @@
     properties_cssom_wrapper_->Reattach(page_rule_->MutableProperties());
 }
 
 DEFINE_TRACE(CSSPageRule) {
   visitor->Trace(page_rule_);
   visitor->Trace(properties_cssom_wrapper_);
   CSSRule::Trace(visitor);
 }
 
 }  // namespace blink