Use rewriting to make ChromeOS keyboard F<number> keys produce extended keycodes.

ash/accelerators/accelerator_controller.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 "ash/accelerators/accelerator_controller.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 
@@ skipping 449 matching lines @@
       if (key_code == ui::VKEY_TAB)
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_PREVWINDOW_TAB);
       return HandleCycleWindowMRU(WindowCycleController::BACKWARD,
                                   accelerator.IsAltDown());
     case CYCLE_FORWARD_MRU:
       if (key_code == ui::VKEY_TAB)
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_NEXTWINDOW_TAB);
       return HandleCycleWindowMRU(WindowCycleController::FORWARD,
                                   accelerator.IsAltDown());
     case CYCLE_BACKWARD_LINEAR:
-      if (key_code == ui::VKEY_F5)
+      if (key_code == ui::VKEY_MEDIA_LAUNCH_APP1)
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_PREVWINDOW_F5);
       HandleCycleWindowLinear(CYCLE_BACKWARD);
       return true;
     case CYCLE_FORWARD_LINEAR:
-      if (key_code == ui::VKEY_F5)
+      if (key_code == ui::VKEY_MEDIA_LAUNCH_APP1)
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_NEXTWINDOW_F5);
       HandleCycleWindowLinear(CYCLE_FORWARD);
       return true;
 #if defined(OS_CHROMEOS)
     case CYCLE_DISPLAY_MODE:
       HandleCycleDisplayMode();
       return true;
     case LOCK_SCREEN:
       return HandleLock();
     case OPEN_FILE_MANAGER_DIALOG:
@@ skipping 237 matching lines @@
       // Disable the shortcut for minimizing full screen window due to
       // crbug.com/131709, which is a crashing issue related to minimizing
       // full screen pepper window.
       if (!wm::IsWindowFullscreen(window)) {
         wm::MinimizeWindow(window);
         return true;
       }
       break;
     }
     case TOGGLE_MAXIMIZED: {
-      if (key_code == ui::VKEY_F4) {
+      if (key_code == ui::VKEY_MEDIA_LAUNCH_APP2) {
         shell->delegate()->RecordUserMetricsAction(
             UMA_ACCEL_MAXIMIZE_RESTORE_F4);
       }
       shell->delegate()->ToggleMaximized();
       return true;
     }
     case WINDOW_POSITION_CENTER: {
       aura::Window* window = wm::GetActiveWindow();
       if (window) {
         wm::CenterWindow(window);
@@ skipping 132 matching lines @@
     keyboard_brightness_control_delegate) {
   keyboard_brightness_control_delegate_ =
       keyboard_brightness_control_delegate.Pass();
 }
 
 bool AcceleratorController::CanHandleAccelerators() const {
   return true;
 }
 
 }  // namespace ash