Remove keyboard event filtering in fullscreen

Source/core/dom/Fullscreen.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
@@ skipping 143 matching lines @@
     return 0;
 }
 
 bool Fullscreen::isFullScreen(Document& document)
 {
     return currentFullScreenElementFrom(document);
 }
 
 Fullscreen::Fullscreen(Document& document)
     : DocumentLifecycleObserver(&document)
-    , m_areKeysEnabledInFullScreen(false)
     , m_fullScreenRenderer(nullptr)
     , m_eventQueueTimer(this, &Fullscreen::eventQueueTimerFired)
 {
     document.setHasFullscreenSupplement();
 }
 
 Fullscreen::~Fullscreen()
 {
 }
 
@@ skipping 102 matching lines @@
                 from(*currentDoc).pushFullscreenElementStack(*followingDoc->ownerElement(), requestType);
                 enqueueChangeEvent(*currentDoc, requestType);
                 continue;
             }
 
             // 4. Otherwise, do nothing for this document. It stays the same.
         } while (++current != docs.end());
 
         // 5. Return, and run the remaining steps asynchronously.
         // 6. Optionally, perform some animation.
-        m_areKeysEnabledInFullScreen = requestType != PrefixedMozillaRequest && requestType != PrefixedVideoRequest;
         document()->frameHost()->chrome().client().enterFullScreenForElement(&element);
 
         // 7. Optionally, display a message indicating how the user can exit displaying the context object fullscreen.
         return;
     } while (0);
 
     enqueueErrorEvent(element, requestType);
 }
 
 void Fullscreen::fullyExitFullscreen(Document& document)
@@ skipping 154 matching lines @@
     if (!m_fullScreenElement)
         return;
 
     if (!document()->isActive())
         return;
 
     m_fullScreenElement->willStopBeingFullscreenElement();
 
     m_fullScreenElement->setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(false);
 
-    m_areKeysEnabledInFullScreen = false;
-
     if (m_fullScreenRenderer)
         m_fullScreenRenderer->unwrapRenderer();
 
     m_fullScreenElement = nullptr;
     document()->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::FullScreen));
 
     if (document()->frame())
         document()->frame()->eventHandler().scheduleHoverStateUpdate();
 
     // When fullyExitFullscreen is called, we call exitFullscreen on the topDocument(). That means
@@ skipping 127 matching lines @@
 void Fullscreen::trace(Visitor* visitor)
 {
     visitor->trace(m_fullScreenElement);
     visitor->trace(m_fullScreenElementStack);
     visitor->trace(m_fullScreenRenderer);
     visitor->trace(m_eventQueue);
     DocumentSupplement::trace(visitor);
 }
 
 } // namespace blink