1 files changed, 62 insertions, 0 deletions
diff --git a/chromium/content/renderer/device_sensors/device_motion_event_pump.cc b/chromium/content/renderer/device_sensors/device_motion_event_pump.cc
new file mode 100644
index 00000000000..0143d1942cc
--- /dev/null
+++ b/chromium/content/renderer/device_sensors/device_motion_event_pump.cc
@@ -0,0 +1,62 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "device_motion_event_pump.h"
+
+#include "content/common/device_sensors/device_motion_messages.h"
+#include "content/public/renderer/render_thread.h"
+#include "third_party/WebKit/public/platform/WebDeviceMotionListener.h"
+
+namespace content {
+
+DeviceMotionEventPump::DeviceMotionEventPump()
+    : DeviceSensorEventPump(), listener_(0) {
+}
+
+DeviceMotionEventPump::DeviceMotionEventPump(int pump_delay_millis)
+    : DeviceSensorEventPump(pump_delay_millis), listener_(0) {
+}
+
+DeviceMotionEventPump::~DeviceMotionEventPump() {
+}
+
+bool DeviceMotionEventPump::SetListener(
+    blink::WebDeviceMotionListener* listener) {
+  listener_ = listener;
+  return listener_ ? RequestStart() : Stop();
+}
+
+bool DeviceMotionEventPump::OnControlMessageReceived(
+    const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(DeviceMotionEventPump, message)
+    IPC_MESSAGE_HANDLER(DeviceMotionMsg_DidStartPolling, OnDidStart)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void DeviceMotionEventPump::FireEvent() {
+  DCHECK(listener_);
+  blink::WebDeviceMotionData data;
+  if (reader_->GetLatestData(&data) && data.allAvailableSensorsAreActive)
+    listener_->didChangeDeviceMotion(data);
+}
+
+bool DeviceMotionEventPump::InitializeReader(base::SharedMemoryHandle handle) {
+  if (!reader_)
+    reader_.reset(new DeviceMotionSharedMemoryReader());
+  return reader_->Initialize(handle);
+}
+
+bool DeviceMotionEventPump::SendStartMessage() {
+  return RenderThread::Get()->Send(new DeviceMotionHostMsg_StartPolling());
+}
+
+
+bool DeviceMotionEventPump::SendStopMessage() {
+  return RenderThread::Get()->Send(new DeviceMotionHostMsg_StopPolling());
+}
+
+}  // namespace content