Deduplicate DeviceEvent* classes

Source/core/frame/DeviceSensorEventController.cpp

Index: Source/core/frame/DeviceSensorEventController.cpp
diff --git a/Source/core/frame/DeviceSensorEventController.cpp b/Source/core/frame/DeviceSensorEventController.cpp
deleted file mode 100644
index 5ffa369be494a6bdd700d4b41f8cc5081b5fb6bf..0000000000000000000000000000000000000000
--- a/Source/core/frame/DeviceSensorEventController.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright 2010 Apple Inc. All rights reserved.
- * Copyright (C) 2012 Samsung Electronics. 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 copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "core/frame/DeviceSensorEventController.h"
-
-#include "core/dom/Document.h"
-#include "core/frame/DOMWindow.h"
-#include "core/page/Page.h"
-
-namespace WebCore {
-
-DeviceSensorEventController::DeviceSensorEventController(Page* page)
-    : PageLifecycleObserver(page)
-    , m_hasEventListener(false)
-    , m_isActive(false)
-    , m_needsCheckingNullEvents(true)
-    , m_timer(this, &DeviceSensorEventController::fireDeviceEvent)
-{
-}
-
-DeviceSensorEventController::~DeviceSensorEventController()
-{
-}
-
-void DeviceSensorEventController::fireDeviceEvent(Timer<DeviceSensorEventController>* timer)
-{
-    ASSERT_UNUSED(timer, timer == &m_timer);
-    ASSERT(hasLastData());
-
-    m_timer.stop();
-    dispatchDeviceEvent(getLastEvent());
-}
-
-void DeviceSensorEventController::dispatchDeviceEvent(PassRefPtrWillBeRawPtr<Event> prpEvent)
-{
-    Document* targetDocument = document();
-
-    if (!targetDocument || !targetDocument->domWindow() || targetDocument->activeDOMObjectsAreSuspended() || targetDocument->activeDOMObjectsAreStopped())
-        return;
-
-    RefPtrWillBeRawPtr<Event> event = prpEvent;
-    targetDocument->domWindow()->dispatchEvent(event);
-
-    if (m_needsCheckingNullEvents) {
-        if (isNullEvent(event.get()))
-            stopUpdating();
-        else
-            m_needsCheckingNullEvents = false;
-    }
-}
-
-void DeviceSensorEventController::startUpdating()
-{
-    if (m_isActive)
-        return;
-
-    if (hasLastData() && !m_timer.isActive()) {
-        // Make sure to fire the data as soon as possible.
-        m_timer.startOneShot(0, FROM_HERE);
-    }
-
-    registerWithDispatcher();
-    m_isActive = true;
-}
-
-void DeviceSensorEventController::stopUpdating()
-{
-    if (!m_isActive)
-        return;
-
-    if (m_timer.isActive())
-        m_timer.stop();
-
-    unregisterWithDispatcher();
-    m_isActive = false;
-}
-
-void DeviceSensorEventController::pageVisibilityChanged()
-{
-    if (!m_hasEventListener)
-        return;
-
-    if (page()->visibilityState() == PageVisibilityStateVisible)
-        startUpdating();
-    else
-        stopUpdating();
-}
-
-} // namespace WebCore