A quick fix for Issue 15531 and 10953...

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 196 matching lines @@
             static_cast<WebUChar>(gdk_keyval_to_unicode(event->keyval));
     }
 
     result.setKeyIdentifierFromWindowsKeyCode();
 
     // FIXME: Do we need to set IsAutoRepeat or IsKeyPad?
 
     return result;
 }
 
-WebKeyboardEvent WebInputEventFactory::keyboardEvent(wchar_t character, double timeStampSeconds)
+WebKeyboardEvent WebInputEventFactory::keyboardEvent(wchar_t character, int state, double timeStampSeconds)
 {
     // keyboardEvent(const GdkEventKey*) depends on the GdkEventKey object and
     // it is hard to use/ it from signal handlers which don't use GdkEventKey
     // objects (e.g. GtkIMContext signal handlers.) For such handlers, this
     // function creates a WebInputEvent::Char event without using a
     // GdkEventKey object.
     WebKeyboardEvent result;
     result.type = WebKit::WebInputEvent::Char;
     result.timeStampSeconds = timeStampSeconds;
+    result.modifiers = gdkStateToWebEventModifiers(state);
     result.windowsKeyCode = character;
     result.nativeKeyCode = character;
     result.text[0] = character;
     result.unmodifiedText[0] = character;
     return result;
 }
 
 // WebMouseEvent --------------------------------------------------------------
 
 WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventButton* event)
@@ skipping 119 matching lines @@
     case GDK_SCROLL_RIGHT:
         result.deltaX = -scrollbarPixelsPerTick;
         result.wheelTicksX = 1;
         break;
     }
 
     return result;
 }
 
 } // namespace WebKit