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 13b92e97b4faa366b14c05f4f72d62025dd117ee..7e2a76fb00638650e646a7a0b9ddc6c639c9d20d 100644
--- a/third_party/WebKit/Source/core/editing/InputMethodController.h
+++ b/third_party/WebKit/Source/core/editing/InputMethodController.h
@@ -127,6 +127,16 @@ class CORE_EXPORT InputMethodController final
 
   // Returns true if moved caret successfully.
   bool moveCaret(int newCaretPosition);
+
+  // size_t computeCommonGraphemeClusterPrefixLengthForSetComposition(
+  // const String& newText) const;
+  PlainTextRange createSelectionRangeForSetComposition(int selectionStart,
+                                                       int selectionEnd,
+                                                       size_t textLength) const;
+  void setCompositionWithIncrementalText(const String&,
+                                         const Vector<CompositionUnderline>&,
+                                         int selectionStart,
+                                         int selectionEnd);
 };
 
 }  // namespace blink