Do not ignore F3-F7 and F9 key presses on an Apple keyboard.

ui/base/keycodes/keyboard_code_conversion_x.cc

Index: ui/base/keycodes/keyboard_code_conversion_x.cc
diff --git a/ui/base/keycodes/keyboard_code_conversion_x.cc b/ui/base/keycodes/keyboard_code_conversion_x.cc
index 6e8af8acd1e2df058bf7f9f94186794a505e7bbf..aecee1dba3d7eabd6cf278fab8847d027b18cb96 100644
--- a/ui/base/keycodes/keyboard_code_conversion_x.cc
+++ b/ui/base/keycodes/keyboard_code_conversion_x.cc
@@ -365,18 +365,29 @@ KeyboardCode KeyboardCodeFromXKeysym(unsigned int keysym) {
       return VKEY_VOLUME_DOWN;
     case XF86XK_AudioRaiseVolume:
       return VKEY_VOLUME_UP;
+    case XF86XK_AudioNext:
+      return VKEY_MEDIA_NEXT_TRACK;
+    case XF86XK_AudioPrev:
+      return VKEY_MEDIA_PREV_TRACK;
     case XF86XK_AudioStop:
       return VKEY_MEDIA_STOP;
     case XF86XK_AudioPlay:
       return VKEY_MEDIA_PLAY_PAUSE;
     case XF86XK_Mail:
       return VKEY_MEDIA_LAUNCH_MAIL;
+    case XF86XK_LaunchA:  // F3 on an Apple keyboard.
+      return VKEY_MEDIA_LAUNCH_APP1;
+    case XF86XK_LaunchB:  // F4 on an Apple keyboard.
     case XF86XK_Calculator:
       return VKEY_MEDIA_LAUNCH_APP2;
     case XF86XK_MonBrightnessDown:
       return VKEY_BRIGHTNESS_DOWN;
     case XF86XK_MonBrightnessUp:
       return VKEY_BRIGHTNESS_UP;
+    case XF86XK_KbdBrightnessDown:
+      return VKEY_KBD_BRIGHTNESS_DOWN;
+    case XF86XK_KbdBrightnessUp:
+      return VKEY_KBD_BRIGHTNESS_UP;
 
     // TODO(sad): some keycodes are still missing.
   }
@@ -709,18 +720,28 @@ int XKeysymForWindowsKeyCode(KeyboardCode keycode, bool shift) {
       return XF86XK_AudioLowerVolume;
     case VKEY_VOLUME_UP:
       return XF86XK_AudioRaiseVolume;
+    case VKEY_MEDIA_NEXT_TRACK:

[Yusuke Sato, 2012/07/10 20:43:52]

also added code for reverse conversion for consistency.

+      return XF86XK_AudioNext;
+    case VKEY_MEDIA_PREV_TRACK:
+      return XF86XK_AudioPrev;
     case VKEY_MEDIA_STOP:
       return XF86XK_AudioStop;
     case VKEY_MEDIA_PLAY_PAUSE:
       return XF86XK_AudioPlay;
     case VKEY_MEDIA_LAUNCH_MAIL:
       return XF86XK_Mail;
+    case VKEY_MEDIA_LAUNCH_APP1:
+      return XF86XK_LaunchA;
     case VKEY_MEDIA_LAUNCH_APP2:
-      return XF86XK_Calculator;
+      return XF86XK_LaunchB;
     case VKEY_BRIGHTNESS_DOWN:
       return XF86XK_MonBrightnessDown;
     case VKEY_BRIGHTNESS_UP:
       return XF86XK_MonBrightnessUp;
+    case VKEY_KBD_BRIGHTNESS_DOWN:
+      return XF86XK_KbdBrightnessDown;
+    case VKEY_KBD_BRIGHTNESS_UP:
+      return XF86XK_KbdBrightnessUp;
 
     default:
       LOG(WARNING) << "Unknown keycode:" << keycode;