events: keycodes: Remove the stateless singleton instance of KeycodeConverter

remoting/host/input_injector_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/host/input_injector.h"
 
 #include <windows.h>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 203 matching lines @@
 
 InputInjectorWin::Core::~Core() {}
 
 void InputInjectorWin::Core::HandleKey(const KeyEvent& event) {
   // HostEventDispatcher should filter events missing the pressed field.
   DCHECK(event.has_pressed() && event.has_usb_keycode());
 
   // Reset the system idle suspend timeout.
   SetThreadExecutionState(ES_SYSTEM_REQUIRED);
 
-  ui::KeycodeConverter* key_converter = ui::KeycodeConverter::GetInstance();
-  int scancode = key_converter->UsbKeycodeToNativeKeycode(event.usb_keycode());
+  int scancode =
+      ui::KeycodeConverter::UsbKeycodeToNativeKeycode(event.usb_keycode());
   VLOG(3) << "Converting USB keycode: " << std::hex << event.usb_keycode()
           << " to scancode: " << scancode << std::dec;
 
   // Ignore events which can't be mapped.
-  if (scancode == key_converter->InvalidNativeKeycode())
+  if (scancode == ui::KeycodeConverter::InvalidNativeKeycode())
     return;
 
   uint32_t flags = KEYEVENTF_SCANCODE | (event.pressed() ? 0 : KEYEVENTF_KEYUP);
   SendKeyboardInput(flags, scancode);
 }
 
 void InputInjectorWin::Core::HandleText(const TextEvent& event) {
   // HostEventDispatcher should filter events missing the pressed field.
   DCHECK(event.has_text());
 
@@ skipping 82 matching lines @@
 }  // namespace
 
 scoped_ptr<InputInjector> InputInjector::Create(
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) {
   return scoped_ptr<InputInjector>(
       new InputInjectorWin(main_task_runner, ui_task_runner));
 }
 
 }  // namespace remoting