Integrate SymbolsIterator into RunSegmenter

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

Index: third_party/WebKit/Source/platform/fonts/shaping/RunSegmenter.h
diff --git a/third_party/WebKit/Source/platform/fonts/shaping/RunSegmenter.h b/third_party/WebKit/Source/platform/fonts/shaping/RunSegmenter.h
index b323b97955a589613f2d1c33cd4094d30182de59..9596ae988af3870f2c57e6d4e46a4c6852d92831 100644
--- a/third_party/WebKit/Source/platform/fonts/shaping/RunSegmenter.h
+++ b/third_party/WebKit/Source/platform/fonts/shaping/RunSegmenter.h
@@ -10,6 +10,7 @@
 #include "platform/fonts/OrientationIterator.h"
 #include "platform/fonts/ScriptRunIterator.h"
 #include "platform/fonts/SmallCapsIterator.h"
+#include "platform/fonts/SymbolsIterator.h"
 #include "platform/fonts/UTF16TextIterator.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
@@ -34,6 +35,7 @@ public:
         UScriptCode script;
         OrientationIterator::RenderOrientation renderOrientation;
         SmallCapsIterator::SmallCapsBehavior smallCapsBehavior;
+        FontFallbackPriority fontFallbackPriority;
     };
 
     RunSegmenter(const UChar* buffer, unsigned bufferSize, FontOrientation, FontVariant);
@@ -45,16 +47,19 @@ private:
     void consumeOrientationIteratorPastLastSplit();
     void consumeSmallCapsIteratorPastLastSplit();
     void consumeScriptIteratorPastLastSplit();
+    void consumeSymbolsIteratorPastLastSplit();
 
     unsigned m_bufferSize;
     RunSegmenterRange m_candidateRange;
     OwnPtr<ScriptRunIterator> m_scriptRunIterator;
     OwnPtr<OrientationIterator> m_orientationIterator;
     OwnPtr<SmallCapsIterator> m_smallCapsIterator;
+    OwnPtr<SymbolsIterator> m_symbolsIterator;
     unsigned m_lastSplit;
     unsigned m_scriptRunIteratorPosition;
     unsigned m_orientationIteratorPosition;
     unsigned m_smallCapsIteratorPosition;
+    unsigned m_symbolsIteratorPosition;
     bool m_atEnd;
 };