Deduplicate DeviceEvent* classes

Source/core/frame/DeviceSensorEventDispatcher.cpp

Index: Source/core/frame/DeviceSensorEventDispatcher.cpp
diff --git a/Source/core/frame/DeviceSensorEventDispatcher.cpp b/Source/core/frame/DeviceSensorEventDispatcher.cpp
deleted file mode 100644
index a992f0aa2e5246d1cce865668bee49ce393a8975..0000000000000000000000000000000000000000
--- a/Source/core/frame/DeviceSensorEventDispatcher.cpp
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright (C) 2013 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "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/DeviceSensorEventDispatcher.h"
-
-namespace WebCore {
-
-DeviceSensorEventDispatcher::DeviceSensorEventDispatcher()
-    : m_needsPurge(false)
-    , m_isDispatching(false)
-{
-}
-
-DeviceSensorEventDispatcher::~DeviceSensorEventDispatcher()
-{
-}
-
-void DeviceSensorEventDispatcher::addController(DeviceSensorEventController* controller)
-{
-    bool wasEmpty = m_controllers.isEmpty();
-    if (!m_controllers.contains(controller))
-        m_controllers.append(controller);
-    if (wasEmpty)
-        startListening();
-}
-
-void DeviceSensorEventDispatcher::removeController(DeviceSensorEventController* controller)
-{
-    // Do not actually remove the controller from the vector, instead zero them out.
-    // The zeros are removed in these two cases:
-    // 1. either immediately if we are not dispatching any events,
-    // 2. or after events to all controllers have dispatched
-    // (see e.g. DeviceOrientationDispatcher::didChangeDeviceOrientation).
-    // This is to correctly handle the re-entrancy case when a controller is destroyed
-    // while the events are still being dispatched.
-    size_t index = m_controllers.find(controller);
-    if (index == kNotFound)
-        return;
-
-    m_controllers[index] = 0;
-    m_needsPurge = true;
-
-    if (!m_isDispatching)
-        purgeControllers();
-}
-
-void DeviceSensorEventDispatcher::purgeControllers()
-{
-    ASSERT(m_needsPurge);
-
-    size_t i = 0;
-    while (i < m_controllers.size()) {
-        if (!m_controllers[i]) {
-            m_controllers[i] = m_controllers.last();
-            m_controllers.removeLast();
-        } else {
-            ++i;
-        }
-    }
-
-    m_needsPurge = false;
-
-    if (m_controllers.isEmpty())
-        stopListening();
-}
-
-} // namespace WebCore