A quick fix for Issue 15852....

webkit/api/src/gtk/WebInputEventFactory.cpp

 /*
  * Copyright (C) 2006-2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 121 matching lines @@
         GDK_v,             // 0x37: GDK_v
         GDK_b,             // 0x38: GDK_b
         GDK_n,             // 0x39: GDK_n
         GDK_m,             // 0x3A: GDK_m
         GDK_comma,         // 0x3B: GDK_comma
         GDK_period,        // 0x3C: GDK_period
         GDK_slash,         // 0x3D: GDK_slash
         0,                 // 0x3E: GDK_Shift_R
     };
 
-    // |windowKeyCode| shouldn't change even when we change the keyboard
-    // layout, e.g. when we type an 'A' key of a US keyboard on the French
-    // layout, |windowsKeyCode| should be VK_A. On the other hand,
-    // |event->keyval| may change when we change the keyboard layout (the
-    // GdkKeymap object attached to the GdkDisplay object), e.g. when we type
-    // an 'A' key of a US keyboard on the French (or Hebrew) layout,
-    // |event->keyval| becomes GDK_q (or GDK_hebrew_shin).
+    // |windowsKeyCode| has to include a valid virtual-key code even when we
+    // use non-US layouts, e.g. even when we type an 'A' key of a US keyboard
+    // on the Hebrew layout, |windowsKeyCode| should be VK_A.
+    // On the other hand, |event->keyval| value depends on the current
+    // GdkKeymap object, i.e. when we type an 'A' key of a US keyboard on
+    // the Hebrew layout, |event->keyval| becomes GDK_hebrew_shin and this
+    // WebCore::windowsKeyCodeForKeyEvent() call returns 0.
     // To improve compatibilty with Windows, we use |event->hardware_keycode|
-    // for retrieving its Windows key-code for the keys that can be changed by
-    // GdkKeymap objects (keyboard-layout drivers).
+    // for retrieving its Windows key-code for the keys when the
+    // WebCore::windowsKeyCodeForEvent() call returns 0.
     // We shouldn't use |event->hardware_keycode| for keys that GdkKeymap
     // objects cannot change because |event->hardware_keycode| doesn't change
     // even when we change the layout options, e.g. when we swap a control
     // key and a caps-lock key, GTK doesn't swap their
     // |event->hardware_keycode| values but swap their |event->keyval| values.
+    int windowsKeyCode = WebCore::windowsKeyCodeForKeyEvent(event->keyval);
+    if (windowsKeyCode)
+        return windowsKeyCode;
+
     const int tableSize = sizeof(hardwareCodeToGDKKeyval) / sizeof(hardwareCodeToGDKKeyval[0]);
     if (event->hardware_keycode < tableSize) {
         int keyval = hardwareCodeToGDKKeyval[event->hardware_keycode];
         if (keyval)
             return WebCore::windowsKeyCodeForKeyEvent(keyval);
     }
 
     // This key is one that keyboard-layout drivers cannot change.
     // Use |event->keyval| to retrieve its |windowsKeyCode| value.
     return WebCore::windowsKeyCodeForKeyEvent(event->keyval);
@@ skipping 190 matching lines @@
     case GDK_SCROLL_RIGHT:
         result.deltaX = -scrollbarPixelsPerTick;
         result.wheelTicksX = 1;
         break;
     }
 
     return result;
 }
 
 } // namespace WebKit