Emphasis glyphBuffer to ignore ellipsis when direction is RTL

Source/platform/fonts/shaping/HarfBuzzShaper.cpp

Index: Source/platform/fonts/shaping/HarfBuzzShaper.cpp
diff --git a/Source/platform/fonts/shaping/HarfBuzzShaper.cpp b/Source/platform/fonts/shaping/HarfBuzzShaper.cpp
index 7c8631223207d2132ba201fe01c4cc373191b7ba..2740aa29d6b3f891027acdda5cafcce2cc14397a 100644
--- a/Source/platform/fonts/shaping/HarfBuzzShaper.cpp
+++ b/Source/platform/fonts/shaping/HarfBuzzShaper.cpp
@@ -1017,6 +1017,13 @@ float HarfBuzzShaper::fillGlyphBufferForTextEmphasis(GlyphBuffer* glyphBuffer, H
         uint16_t currentCharacterIndex = currentRun->startIndex() + glyphToCharacterIndexes[i];
         bool isRunEnd = (i + 1 == numGlyphs);
         bool isClusterEnd =  isRunEnd || (currentRun->startIndex() + glyphToCharacterIndexes[i + 1] != currentCharacterIndex);
+
+        if ((m_run.rtl() && currentCharacterIndex >= m_toIndex) || (!m_run.rtl() && currentCharacterIndex < m_fromIndex)) {
+            advanceSoFar += advances[i];
+            m_run.rtl() ? --clusterStart : ++clusterStart;
+            continue;
+        }
+
         clusterAdvance += advances[i];
 
         if (isClusterEnd) {