Revert of Remove prefixed Pointer Lock API.

Source/core/page/PointerLockController.cpp

 /*
  * Copyright (C) 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:
  * 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 32 matching lines @@
 
 PassOwnPtrWillBeRawPtr<PointerLockController> PointerLockController::create(Page* page)
 {
     return adoptPtrWillBeNoop(new PointerLockController(page));
 }
 
 void PointerLockController::requestPointerLock(Element* target)
 {
     if (!target || !target->inDocument() || m_documentOfRemovedElementWhileWaitingForUnlock) {
         enqueueEvent(EventTypeNames::pointerlockerror, target);
+        enqueueEvent(EventTypeNames::webkitpointerlockerror, target);
         return;
     }
 
     if (target->document().isSandboxed(SandboxPointerLock)) {
         // FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
         target->document().addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Blocked pointer lock on an element because the element's frame is sandboxed and the 'allow-pointer-lock' permission is not set.");
         enqueueEvent(EventTypeNames::pointerlockerror, target);
+        enqueueEvent(EventTypeNames::webkitpointerlockerror, target);
         return;
     }
 
     if (m_element) {
         if (m_element->document() != target->document()) {
             enqueueEvent(EventTypeNames::pointerlockerror, target);
+            enqueueEvent(EventTypeNames::webkitpointerlockerror, target);
             return;
         }
         enqueueEvent(EventTypeNames::pointerlockchange, target);
+        enqueueEvent(EventTypeNames::webkitpointerlockchange, target);
         m_element = target;
     } else if (m_page->chrome().client().requestPointerLock()) {
         m_lockPending = true;
         m_element = target;
     } else {
         enqueueEvent(EventTypeNames::pointerlockerror, target);
+        enqueueEvent(EventTypeNames::webkitpointerlockerror, target);
     }
 }
 
 void PointerLockController::requestPointerUnlock()
 {
     return m_page->chrome().client().requestPointerUnlock();
 }
 
 void PointerLockController::elementRemoved(Element* element)
 {
@@ skipping 20 matching lines @@
 }
 
 Element* PointerLockController::element() const
 {
     return m_element.get();
 }
 
 void PointerLockController::didAcquirePointerLock()
 {
     enqueueEvent(EventTypeNames::pointerlockchange, m_element.get());
+    enqueueEvent(EventTypeNames::webkitpointerlockchange, m_element.get());
     m_lockPending = false;
 }
 
 void PointerLockController::didNotAcquirePointerLock()
 {
     enqueueEvent(EventTypeNames::pointerlockerror, m_element.get());
+    enqueueEvent(EventTypeNames::webkitpointerlockerror, m_element.get());
     clearElement();
 }
 
 void PointerLockController::didLosePointerLock()
 {
     enqueueEvent(EventTypeNames::pointerlockchange, m_element ? &m_element->document() : m_documentOfRemovedElementWhileWaitingForUnlock.get());
+    enqueueEvent(EventTypeNames::webkitpointerlockchange, m_element ? &m_element->document() : m_documentOfRemovedElementWhileWaitingForUnlock.get());
     clearElement();
     m_documentOfRemovedElementWhileWaitingForUnlock = nullptr;
 }
 
 void PointerLockController::dispatchLockedMouseEvent(const PlatformMouseEvent& event, const AtomicString& eventType)
 {
     if (!m_element || !m_element->document().frame())
         return;
 
     m_element->dispatchMouseEvent(event, eventType, event.clickCount());
@@ skipping 22 matching lines @@
 }
 
 void PointerLockController::trace(Visitor* visitor)
 {
     visitor->trace(m_page);
     visitor->trace(m_element);
     visitor->trace(m_documentOfRemovedElementWhileWaitingForUnlock);
 }
 
 } // namespace blink