WTF: Implement explicit RefPtr::operator bool.

third_party/WebKit/Source/platform/fonts/shaping/CachingWordShapeIterator.h

 /*
  * Copyright (C) 2015 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 47 matching lines @@
     bool next(RefPtr<ShapeResult>* wordResult)
     {
         if (UNLIKELY(m_textRun.allowTabs()))
             return nextForAllowTabs(wordResult);
 
         if (!m_shapeByWord) {
             if (m_startIndex)
                 return false;
             *wordResult = shapeWord(m_textRun, m_font);
             m_startIndex = 1;
-            return *wordResult;
+            return wordResult->get();
         }
 
         return nextWord(wordResult);
     }
 
 private:
     PassRefPtr<ShapeResult> shapeWordWithoutSpacing(const TextRun& wordRun, const Font* font)
     {
         ShapeCacheEntry* cacheEntry = m_shapeCache->add(wordRun, ShapeCacheEntry());
         if (cacheEntry && cacheEntry->m_shapeResult)
@@ skipping 89 matching lines @@
 
         const unsigned length = m_textRun.length();
         if (!m_startIndex && endIndex == length) {
             *result = shapeWord(m_textRun, m_font);
         } else {
             ASSERT(endIndex <= length);
             TextRun subRun = m_textRun.subRun(m_startIndex, endIndex - m_startIndex);
             *result = shapeWord(subRun, m_font);
         }
         m_startIndex = endIndex;
-        return *result;
+        return result->get();
     }
 
     unsigned endIndexUntil(UChar ch)
     {
         unsigned length = m_textRun.length();
         ASSERT(m_startIndex < length);
         for (unsigned i = m_startIndex + 1; ; i++) {
             if (i == length || m_textRun[i] == ch)
                 return i;
         }
@@ skipping 31 matching lines @@
     const Font* m_font;
     ShapeResultSpacing m_spacing;
     float m_widthSoFar; // Used only when allowTabs()
     unsigned m_startIndex : 31;
     unsigned m_shapeByWord : 1;
 };
 
 } // namespace blink
 
 #endif // CachingWordShapeIterator_h