Remove KeyboardCodeFromGdkEventKey.

The code which used it was removed in r127507, so there's no reason to keep
it alive.

BUG=
R=ben@chromium.org,sky@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17093002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@206765 0039d316-1c4b-4281-b951-d872f2087c98

ui/base/keycodes/keyboard_code_conversion_gtk.cc

@@ -82,15 +82,4 @@ int GdkNativeKeyCodeForWindowsKeyCode(KeyboardCode keycode, bool shift) {
   return native_keycode;
 }
 
-KeyboardCode KeyboardCodeFromGdkEventKey(GdkEventKey* event) {
-  KeyboardCode keycode = WindowsKeyCodeForGdkKeyCode(event->keyval);
-  // Gtk's key values are same as X11's keysyms.
-  if (keycode == VKEY_UNKNOWN) {
-    unsigned int keyval =
-        DefaultXKeysymFromHardwareKeycode(event->hardware_keycode);
-    keycode = WindowsKeyCodeForGdkKeyCode(keyval);
-  }
-  return keycode;
-}
-
 }  // namespace ui

ui/base/keycodes/keyboard_code_conversion_gtk.h

@@ -52,8 +52,6 @@ UI_EXPORT int GdkKeyCodeForWindowsKeyCode(KeyboardCode keycode, bool shift);
 UI_EXPORT int GdkNativeKeyCodeForWindowsKeyCode(KeyboardCode keycode,
                                                 bool shift);
 
-UI_EXPORT KeyboardCode KeyboardCodeFromGdkEventKey(GdkEventKey* event);
-
 } // namespace ui
 
 #endif  // UI_BASE_KEYCODES_KEYBOARD_CODE_CONVERSION_GTK_H_