Workaround for setComposition styling clobber

third_party/WebKit/Source/core/editing/InputMethodController.h

Index: third_party/WebKit/Source/core/editing/InputMethodController.h
diff --git a/third_party/WebKit/Source/core/editing/InputMethodController.h b/third_party/WebKit/Source/core/editing/InputMethodController.h
index 45cb715a0092acba96107a909f9e88c68717d29c..4c31065a08e9403c1b19bb602bafbd25793e1956 100644
--- a/third_party/WebKit/Source/core/editing/InputMethodController.h
+++ b/third_party/WebKit/Source/core/editing/InputMethodController.h
@@ -115,6 +115,9 @@ private:
 
     // Returns true if moved caret successfully.
     bool moveCaret(int newCaretPosition);
+
+    size_t computeUTF16CommonPrefixLength(const String& str1, const String& str2) const;
+    PlainTextRange createSelectionRangeForSetComposition(int selectionStart, int selectionEnd, size_t textLength) const;
 };
 
 } // namespace blink