Shift+F10 should open Context Menu regardless the state of NumLock/CapsLock

third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp

 /*
  * Copyright (C) 2014 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 820 matching lines @@
 
 #if !OS(MACOSX)
     const WebInputEvent::Type contextMenuTriggeringEventType =
 #if OS(WIN)
         WebInputEvent::KeyUp;
 #else
         WebInputEvent::RawKeyDown;
 #endif
 
     bool isUnmodifiedMenuKey = !(event.modifiers & WebInputEvent::InputModifiers) && event.windowsKeyCode == VKEY_APPS;
-    bool isShiftF10 = event.modifiers == WebInputEvent::ShiftKey && event.windowsKeyCode == VKEY_F10;
+    bool isShiftF10 = (event.modifiers & WebInputEvent::InputModifiers) == WebInputEvent::ShiftKey && event.windowsKeyCode == VKEY_F10;
     if ((isUnmodifiedMenuKey || isShiftF10) && event.type == contextMenuTriggeringEventType) {
         view()->sendContextMenuEvent(event);
         return WebInputEventResult::HandledSystem;
     }
 #endif // !OS(MACOSX)
 
     return keyEventDefault(event);
 }
 
 WebInputEventResult WebFrameWidgetImpl::handleCharEvent(const WebKeyboardEvent& event)
@@ skipping 266 matching lines @@
 
 HitTestResult WebFrameWidgetImpl::hitTestResultForRootFramePos(const IntPoint& posInRootFrame)
 {
     IntPoint docPoint(m_localRoot->frame()->view()->rootFrameToContents(posInRootFrame));
     HitTestResult result = m_localRoot->frame()->eventHandler().hitTestResultAtPoint(docPoint, HitTestRequest::ReadOnly | HitTestRequest::Active);
     result.setToShadowHostIfInUserAgentShadowRoot();
     return result;
 }
 
 } // namespace blink