Remove redundant casts, use NGLayoutInputNode base functions everywhere

third_party/WebKit/Source/core/layout/ng/ng_inline_break_token.h

 // Copyright 2017 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.
 
 #ifndef NGInlineBreakToken_h
 #define NGInlineBreakToken_h
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/ng_break_token.h"
 
@@ skipping 27 matching lines @@
 
   explicit NGInlineBreakToken(NGLayoutInputNode* node);
 
   unsigned item_index_;
   unsigned text_offset_;
 };
 
 DEFINE_TYPE_CASTS(NGInlineBreakToken,
                   NGBreakToken,
                   token,
-                  token->Type() == NGBreakToken::kInlineBreakToken,
-                  token.Type() == NGBreakToken::kInlineBreakToken);
+                  token->IsInlineType(),
+                  token.IsInlineType());
 
 }  // namespace blink
 
 #endif  // NGInlineBreakToken_h