Add isPageVisible to Page

third_party/WebKit/Source/modules/gamepad/NavigatorGamepad.cpp

 /*
  * Copyright (C) 2011, 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:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 202 matching lines @@
 }
 
 static bool isGamepadEvent(const AtomicString& eventType)
 {
     return eventType == EventTypeNames::gamepadconnected || eventType == EventTypeNames::gamepaddisconnected;
 }
 
 void NavigatorGamepad::didAddEventListener(LocalDOMWindow*, const AtomicString& eventType)
 {
     if (isGamepadEvent(eventType)) {
-        if (page() && page()->visibilityState() == PageVisibilityStateVisible)
+        if (page() && page()->isPageVisible())
             startUpdatingIfAttached();
         m_hasEventListener = true;
     }
 }
 
 void NavigatorGamepad::didRemoveEventListener(LocalDOMWindow* window, const AtomicString& eventType)
 {
     if (isGamepadEvent(eventType)
         && !window->hasEventListeners(EventTypeNames::gamepadconnected)
         && !window->hasEventListeners(EventTypeNames::gamepaddisconnected)) {
         didRemoveGamepadEventListeners();
     }
 }
 
 void NavigatorGamepad::didRemoveAllEventListeners(LocalDOMWindow*)
 {
     didRemoveGamepadEventListeners();
 }
 
 void NavigatorGamepad::didRemoveGamepadEventListeners()
 {
     m_hasEventListener = false;
     m_dispatchOneEventRunner->stop();
     m_pendingEvents.clear();
 }
 
 void NavigatorGamepad::pageVisibilityChanged()
 {
     // Inform the embedder whether it needs to provide gamepad data for us.
-    bool visible = page()->visibilityState() == PageVisibilityStateVisible;
+    bool visible = page()->isPageVisible();
     if (visible && (m_hasEventListener || m_gamepads))
         startUpdatingIfAttached();
     else
         stopUpdating();
 
     if (!visible || !m_hasEventListener)
         return;
 
     // Tell the page what has changed. m_gamepads contains the state before we became hidden.
     // We create a new snapshot and compare them.
@@ skipping 15 matching lines @@
         if (connectedGamepadChanged || (!oldWasConnected && newIsConnected)) {
             m_pendingEvents.append(newGamepad);
         }
     }
 
     if (!m_pendingEvents.isEmpty())
         m_dispatchOneEventRunner->runAsync();
 }
 
 } // namespace blink