TextBreakIterator should use the C++ icu API instead of the C one

Source/web/ContextMenuClientImpl.cpp

Index: Source/web/ContextMenuClientImpl.cpp
diff --git a/Source/web/ContextMenuClientImpl.cpp b/Source/web/ContextMenuClientImpl.cpp
index c634e356c4bd7495a7dc247575dcc25ece3827ed..2400aa72ec870b7dcebe17a0898608973c9b6898 100644
--- a/Source/web/ContextMenuClientImpl.cpp
+++ b/Source/web/ContextMenuClientImpl.cpp
@@ -100,7 +100,7 @@ static WebURL urlFromFrame(Frame* frame)
 static bool isASingleWord(const String& text)
 {
     TextBreakIterator* it = wordBreakIterator(text, 0, text.length());
-    return it && textBreakNext(it) == static_cast<int>(text.length());
+    return it && it->next() == static_cast<int>(text.length());
 }
 
 // Helper function to get misspelled word on which context menu