Clear baseComputedStyle when text-autosizing changes.

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

 /*
  * Copyright (C) 2013 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 983 matching lines @@
         layoutObject->setNeedsLayoutAndFullPaintInvalidation(LayoutInvalidationReason::TextAutosizing);
         break;
 
     case LayoutNeeded:
         layoutObject->setStyle(style.release());
         break;
     }
 
     if (multiplier != 1)
         m_pageInfo.m_hasAutosized = true;
+
+    layoutObject->clearBaseComputedStyle();
 }
 
 bool TextAutosizer::isWiderOrNarrowerDescendant(Cluster* cluster)
 {
     // FIXME: Why do we return true when hasExplicitWidth returns false??
     if (!cluster->m_parent || !hasExplicitWidth(cluster->m_root))
         return true;
 
     const LayoutBlock* parentDeepestBlockContainingAllText = deepestBlockContainingAllText(cluster->m_parent);
     ASSERT(m_blocksThatHaveBegunLayout.contains(cluster->m_root));
@@ skipping 166 matching lines @@
     }
     return computedSize;
 }
 
 DEFINE_TRACE(TextAutosizer)
 {
     visitor->trace(m_document);
 }
 
 } // namespace blink