events: keycodes: Remove the stateless singleton instance of KeycodeConverter

content/renderer/pepper/usb_key_code_conversion_mac.cc

Index: content/renderer/pepper/usb_key_code_conversion_mac.cc
diff --git a/content/renderer/pepper/usb_key_code_conversion_mac.cc b/content/renderer/pepper/usb_key_code_conversion_mac.cc
index c701b48453cd1162c59b594cdec79851f89081c9..784fdd0c6022e7d6e57368c48d06594e9cb2e108 100644
--- a/content/renderer/pepper/usb_key_code_conversion_mac.cc
+++ b/content/renderer/pepper/usb_key_code_conversion_mac.cc
@@ -13,13 +13,12 @@ using blink::WebKeyboardEvent;
 namespace content {
 
 uint32_t UsbKeyCodeForKeyboardEvent(const WebKeyboardEvent& key_event) {
-  ui::KeycodeConverter* key_converter = ui::KeycodeConverter::GetInstance();
-  return key_converter->NativeKeycodeToUsbKeycode(key_event.nativeKeyCode);
+  return ui::KeycodeConverter::NativeKeycodeToUsbKeycode(
+      key_event.nativeKeyCode);
 }
 
 const char* CodeForKeyboardEvent(const WebKeyboardEvent& key_event) {
-  ui::KeycodeConverter* key_converter = ui::KeycodeConverter::GetInstance();
-  return key_converter->NativeKeycodeToCode(key_event.nativeKeyCode);
+  return ui::KeycodeConverter::NativeKeycodeToCode(key_event.nativeKeyCode);
 }
 
 }  // namespace content