[LayoutNG] Remove unnecessary #includes

third_party/WebKit/Source/core/layout/ng/ng_fragment_base.cc

 // 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/layout/ng/ng_fragment_base.h"
 
-#include "core/layout/ng/ng_physical_fragment_base.h"
-
 namespace blink {
 
 LayoutUnit NGFragmentBase::InlineSize() const {
   return writing_mode_ == kHorizontalTopBottom ? physical_fragment_->Width()
                                                : physical_fragment_->Height();
 }
 
 LayoutUnit NGFragmentBase::BlockSize() const {
   return writing_mode_ == kHorizontalTopBottom ? physical_fragment_->Height()
                                                : physical_fragment_->Width();
@@ skipping 25 matching lines @@
 
 NGPhysicalFragmentBase::NGFragmentType NGFragmentBase::Type() const {
   return physical_fragment_->Type();
 }
 
 DEFINE_TRACE(NGFragmentBase) {
   visitor->trace(physical_fragment_);
 }
 
 }  // namespace blink