Remove LayoutBlock::deleteLineBoxTree().

third_party/WebKit/Source/core/layout/LayoutRubyRun.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 152 matching lines @@
                 // The now empty ruby base will be removed below.
                 ASSERT(!rubyBase()->firstChild());
             }
         }
     }
 
     LayoutBlockFlow::removeChild(child);
 
     if (!beingDestroyed() && !documentBeingDestroyed()) {
         // Check if our base (if any) is now empty. If so, destroy it.
-        LayoutBlock* base = rubyBase();
+        LayoutBlockFlow* base = rubyBase();
         if (base && !base->firstChild()) {
             LayoutBlockFlow::removeChild(base);
             base->deleteLineBoxTree();
             base->destroy();
         }
 
         // If any of the above leaves the run empty, destroy it as well.
         if (!hasRubyText() && !hasRubyBase()) {
             deleteLineBoxTree();
             destroy();
@@ skipping 140 matching lines @@
     case U_LB_GLUE:
     case U_LB_OPEN_PUNCTUATION:
         return false;
     default:
         break;
     }
     return true;
 }
 
 } // namespace blink