use ozone implementation for key code conversion when there is no X display

chrome/test/chromedriver/keycode_text_conversion.h

Index: chrome/test/chromedriver/keycode_text_conversion.h
diff --git a/chrome/test/chromedriver/keycode_text_conversion.h b/chrome/test/chromedriver/keycode_text_conversion.h
index 6885f70964b2c1c5507ac25e9fe7c5dd86a7aaad..5968516aa5eb4344031ce4aad39a7e604808fed8 100644
--- a/chrome/test/chromedriver/keycode_text_conversion.h
+++ b/chrome/test/chromedriver/keycode_text_conversion.h
@@ -37,4 +37,16 @@ bool ConvertCharToKeyCode(base::char16 key,
 bool SwitchToUSKeyboardLayout();
 #endif
 
+#if defined(USE_X11)
+// Use the ozone implementation when there is no X display.
+bool ConvertKeyCodeToTextOzone(ui::KeyboardCode key_code,
+                               int modifiers,
+                               std::string* text,
+                               std::string* error_msg);
+bool ConvertCharToKeyCodeOzone(base::char16 key,
+                               ui::KeyboardCode* key_code,
+                               int* necessary_modifiers,
+                               std::string* error_msg);
+#endif
+
 #endif  // CHROME_TEST_CHROMEDRIVER_KEYCODE_TEXT_CONVERSION_H_