Rendering text-justify:distribute for 8 bit characters.

Source/platform/fonts/Character.h

Index: Source/platform/fonts/Character.h
diff --git a/Source/platform/fonts/Character.h b/Source/platform/fonts/Character.h
index bbe0433f369a907fc369bcc4426fc1f44441fe4c..b80f8777c37de232df6c415bc011212ea0b26a64 100644
--- a/Source/platform/fonts/Character.h
+++ b/Source/platform/fonts/Character.h
@@ -48,8 +48,8 @@ public:
     static bool isCJKIdeograph(UChar32);
     static bool isCJKIdeographOrSymbol(UChar32);
 
-    static unsigned expansionOpportunityCount(const LChar*, size_t length, TextDirection, bool& isAfterExpansion);
-    static unsigned expansionOpportunityCount(const UChar*, size_t length, TextDirection, bool& isAfterExpansion);
+    static unsigned expansionOpportunityCount(const LChar*, size_t length, TextDirection, bool& isAfterExpansion, const bool distributeJustification);
+    static unsigned expansionOpportunityCount(const UChar*, size_t length, TextDirection, bool& isAfterExpansion, const bool distributeJustification);
 
     static bool treatAsSpace(UChar c) { return c == ' ' || c == '\t' || c == '\n' || c == noBreakSpace; }
     static bool treatAsZeroWidthSpace(UChar c) { return treatAsZeroWidthSpaceInComplexScript(c) || c == 0x200c || c == 0x200d; }