Refactor code listening to platform events in content/renderer/.

content/renderer/device_sensors/device_sensor_event_pump.cc

Index: content/renderer/device_sensors/device_sensor_event_pump.cc
diff --git a/content/renderer/device_sensors/device_sensor_event_pump.cc b/content/renderer/device_sensors/device_sensor_event_pump.cc
deleted file mode 100644
index eed3af27c0349432ffd9ba16acd5d8e4db138191..0000000000000000000000000000000000000000
--- a/content/renderer/device_sensors/device_sensor_event_pump.cc
+++ /dev/null
@@ -1,87 +0,0 @@
-// 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_sensor_event_pump.h"
-
-#include "base/logging.h"
-#include "content/public/renderer/render_thread.h"
-
-namespace content {
-
-// Default interval between successive polls, should take into account the
-// value of |kInertialSensorIntervalMillis| in
-// content/browser/device_sensors/inertial_sensor_consts.h.
-const int DeviceSensorEventPump::kDefaultPumpDelayMillis = 50;
-
-int DeviceSensorEventPump::GetDelayMillis() const {
-  return pump_delay_millis_;
-}
-
-DeviceSensorEventPump::DeviceSensorEventPump()
-    : pump_delay_millis_(kDefaultPumpDelayMillis),
-      state_(STOPPED) {
-}
-
-DeviceSensorEventPump::DeviceSensorEventPump(int pump_delay_millis)
-    : pump_delay_millis_(pump_delay_millis),
-      state_(STOPPED) {
-  DCHECK_GE(pump_delay_millis_, 0);
-}
-
-DeviceSensorEventPump::~DeviceSensorEventPump() {
-}
-
-bool DeviceSensorEventPump::RequestStart() {
-  DVLOG(2) << "requested start";
-
-  if (state_ != STOPPED)
-    return false;
-
-  DCHECK(!timer_.IsRunning());
-
-  if (SendStartMessage()) {
-    state_ = PENDING_START;
-    return true;
-  }
-  return false;
-}
-
-bool DeviceSensorEventPump::Stop() {
-  DVLOG(2) << "stop";
-
-  if (state_ == STOPPED)
-    return true;
-
-  DCHECK((state_ == PENDING_START && !timer_.IsRunning()) ||
-      (state_ == RUNNING && timer_.IsRunning()));
-
-  if (timer_.IsRunning())
-    timer_.Stop();
-  SendStopMessage();
-  state_ = STOPPED;
-  return true;
-}
-
-void DeviceSensorEventPump::Attach(RenderThread* thread) {
-  if (!thread)
-    return;
-  thread->AddObserver(this);
-}
-
-void DeviceSensorEventPump::OnDidStart(base::SharedMemoryHandle handle) {
-  DVLOG(2) << "did start sensor event pump";
-
-  if (state_ != PENDING_START)
-    return;
-
-  DCHECK(!timer_.IsRunning());
-
-  if (InitializeReader(handle)) {
-    timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(GetDelayMillis()),
-                 this, &DeviceSensorEventPump::FireEvent);
-    state_ = RUNNING;
-  }
-}
-
-}  // namespace content