Make HarfBuzzShaperTest.ResolveCandidateRunsUnicodeVariants more robust

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

 // Copyright 2015 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 ShapeResultTestInfo_h
 #define ShapeResultTestInfo_h
 
 #include "platform/fonts/shaping/HarfBuzzShaper.h"
 
 #include <hb.h>
 
 namespace blink {
 
 class PLATFORM_EXPORT ShapeResultTestInfo : public ShapeResult {
  public:
   unsigned numberOfRunsForTesting() const;
   bool runInfoForTesting(unsigned runIndex,
                          unsigned& startIndex,
                          unsigned& numGlyphs,
                          hb_script_t&) const;
   uint16_t glyphForTesting(unsigned runIndex, size_t glyphIndex) const;
   float advanceForTesting(unsigned runIndex, size_t glyphIndex) const;
+  SimpleFontData* fontDataForTesting(unsigned runIndex) const;
 };
 
 }  // namespace blink
 
 #endif  // ShapeResultTestInfo_h