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

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 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 1116 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) {
         sendContextMenuEvent(event);
         return WebInputEventResult::HandledSystem;
     }
 #endif // !OS(MACOSX)
 
     if (keyEventDefault(event))
         return WebInputEventResult::HandledSystem;
     return WebInputEventResult::NotHandled;
 }
@@ skipping 3385 matching lines @@
 {
     // TODO(oshima): Investigate if this should return the ScreenInfo's scale factor rather than
     // page's scale factor, which can be 1 in use-zoom-for-dsf mode.
     if (!page())
         return 1;
 
     return page()->deviceScaleFactor();
 }
 
 } // namespace blink