Move //content/browser/device_sensor/ into device/sensors

content/browser/device_sensors/sensor_manager_android.cc

Index: content/browser/device_sensors/sensor_manager_android.cc
diff --git a/content/browser/device_sensors/sensor_manager_android.cc b/content/browser/device_sensors/sensor_manager_android.cc
deleted file mode 100644
index 65f5771148e349e7d2c9e4e73edd62ae518a4bf0..0000000000000000000000000000000000000000
--- a/content/browser/device_sensors/sensor_manager_android.cc
+++ /dev/null
@@ -1,454 +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 "content/browser/device_sensors/sensor_manager_android.h"
-
-#include <string.h>
-
-#include "base/android/context_utils.h"
-#include "base/android/jni_android.h"
-#include "base/bind.h"
-#include "base/memory/singleton.h"
-#include "base/message_loop/message_loop.h"
-#include "base/metrics/histogram_macros.h"
-#include "jni/DeviceSensors_jni.h"
-
-using base::android::AttachCurrentThread;
-using base::android::JavaParamRef;
-
-namespace {
-
-void UpdateDeviceOrientationHistogram(
-    content::SensorManagerAndroid::OrientationSensorType type) {
-  UMA_HISTOGRAM_ENUMERATION("InertialSensor.DeviceOrientationSensorAndroid",
-      type, content::SensorManagerAndroid::ORIENTATION_SENSOR_MAX);
-}
-
-void SetOrientation(content::DeviceOrientationHardwareBuffer* buffer,
-    double alpha, double beta, double gamma) {
-  buffer->seqlock.WriteBegin();
-  buffer->data.alpha = alpha;
-  buffer->data.hasAlpha = true;
-  buffer->data.beta = beta;
-  buffer->data.hasBeta = true;
-  buffer->data.gamma = gamma;
-  buffer->data.hasGamma = true;
-  buffer->seqlock.WriteEnd();
-}
-
-void SetOrientationBufferStatus(
-    content::DeviceOrientationHardwareBuffer* buffer,
-    bool ready, bool absolute) {
-  buffer->seqlock.WriteBegin();
-  buffer->data.absolute = absolute;
-  buffer->data.allAvailableSensorsAreActive = ready;
-  buffer->seqlock.WriteEnd();
-}
-
-}  // namespace
-
-namespace content {
-
-SensorManagerAndroid::SensorManagerAndroid()
-    : number_active_device_motion_sensors_(0),
-      device_light_buffer_(nullptr),
-      device_motion_buffer_(nullptr),
-      device_orientation_buffer_(nullptr),
-      motion_buffer_initialized_(false),
-      orientation_buffer_initialized_(false),
-      is_shutdown_(false) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  memset(received_motion_data_, 0, sizeof(received_motion_data_));
-  device_sensors_.Reset(Java_DeviceSensors_getInstance(
-      AttachCurrentThread(), base::android::GetApplicationContext()));
-}
-
-SensorManagerAndroid::~SensorManagerAndroid() {
-}
-
-bool SensorManagerAndroid::Register(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-SensorManagerAndroid* SensorManagerAndroid::GetInstance() {
-  DCHECK(base::MessageLoopForUI::IsCurrent());
-  return base::Singleton<
-      SensorManagerAndroid,
-      base::LeakySingletonTraits<SensorManagerAndroid>>::get();
-}
-
-void SensorManagerAndroid::GotOrientation(JNIEnv*,
-                                          const JavaParamRef<jobject>&,
-                                          double alpha,
-                                          double beta,
-                                          double gamma) {
-  base::AutoLock autolock(orientation_buffer_lock_);
-
-  if (!device_orientation_buffer_)
-    return;
-
-  SetOrientation(device_orientation_buffer_, alpha, beta, gamma);
-
-  if (!orientation_buffer_initialized_) {
-    OrientationSensorType type =
-        static_cast<OrientationSensorType>(GetOrientationSensorTypeUsed());
-    SetOrientationBufferStatus(device_orientation_buffer_, true,
-        type != GAME_ROTATION_VECTOR);
-    orientation_buffer_initialized_ = true;
-    UpdateDeviceOrientationHistogram(type);
-  }
-}
-
-void SensorManagerAndroid::GotOrientationAbsolute(JNIEnv*,
-                                                  const JavaParamRef<jobject>&,
-                                                  double alpha,
-                                                  double beta,
-                                                  double gamma) {
-  base::AutoLock autolock(orientation_absolute_buffer_lock_);
-
-  if (!device_orientation_absolute_buffer_)
-    return;
-
-  SetOrientation(device_orientation_absolute_buffer_, alpha, beta, gamma);
-
-  if (!orientation_absolute_buffer_initialized_) {
-    SetOrientationBufferStatus(device_orientation_absolute_buffer_, true, true);
-    orientation_absolute_buffer_initialized_ = true;
-    // TODO(timvolodine): Add UMA.
-  }
-}
-
-void SensorManagerAndroid::GotAcceleration(JNIEnv*,
-                                           const JavaParamRef<jobject>&,
-                                           double x,
-                                           double y,
-                                           double z) {
-  base::AutoLock autolock(motion_buffer_lock_);
-
-  if (!device_motion_buffer_)
-    return;
-
-  device_motion_buffer_->seqlock.WriteBegin();
-  device_motion_buffer_->data.accelerationX = x;
-  device_motion_buffer_->data.hasAccelerationX = true;
-  device_motion_buffer_->data.accelerationY = y;
-  device_motion_buffer_->data.hasAccelerationY = true;
-  device_motion_buffer_->data.accelerationZ = z;
-  device_motion_buffer_->data.hasAccelerationZ = true;
-  device_motion_buffer_->seqlock.WriteEnd();
-
-  if (!motion_buffer_initialized_) {
-    received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] = 1;
-    CheckMotionBufferReadyToRead();
-  }
-}
-
-void SensorManagerAndroid::GotAccelerationIncludingGravity(
-    JNIEnv*,
-    const JavaParamRef<jobject>&,
-    double x,
-    double y,
-    double z) {
-  base::AutoLock autolock(motion_buffer_lock_);
-
-  if (!device_motion_buffer_)
-    return;
-
-  device_motion_buffer_->seqlock.WriteBegin();
-  device_motion_buffer_->data.accelerationIncludingGravityX = x;
-  device_motion_buffer_->data.hasAccelerationIncludingGravityX = true;
-  device_motion_buffer_->data.accelerationIncludingGravityY = y;
-  device_motion_buffer_->data.hasAccelerationIncludingGravityY = true;
-  device_motion_buffer_->data.accelerationIncludingGravityZ = z;
-  device_motion_buffer_->data.hasAccelerationIncludingGravityZ = true;
-  device_motion_buffer_->seqlock.WriteEnd();
-
-  if (!motion_buffer_initialized_) {
-    received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] = 1;
-    CheckMotionBufferReadyToRead();
-  }
-}
-
-void SensorManagerAndroid::GotRotationRate(JNIEnv*,
-                                           const JavaParamRef<jobject>&,
-                                           double alpha,
-                                           double beta,
-                                           double gamma) {
-  base::AutoLock autolock(motion_buffer_lock_);
-
-  if (!device_motion_buffer_)
-    return;
-
-  device_motion_buffer_->seqlock.WriteBegin();
-  device_motion_buffer_->data.rotationRateAlpha = alpha;
-  device_motion_buffer_->data.hasRotationRateAlpha = true;
-  device_motion_buffer_->data.rotationRateBeta = beta;
-  device_motion_buffer_->data.hasRotationRateBeta = true;
-  device_motion_buffer_->data.rotationRateGamma = gamma;
-  device_motion_buffer_->data.hasRotationRateGamma = true;
-  device_motion_buffer_->seqlock.WriteEnd();
-
-  if (!motion_buffer_initialized_) {
-    received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] = 1;
-    CheckMotionBufferReadyToRead();
-  }
-}
-
-void SensorManagerAndroid::GotLight(JNIEnv*,
-                                    const JavaParamRef<jobject>&,
-                                    double value) {
-  base::AutoLock autolock(light_buffer_lock_);
-
-  if (!device_light_buffer_)
-    return;
-
-  device_light_buffer_->seqlock.WriteBegin();
-  device_light_buffer_->data.value = value;
-  device_light_buffer_->seqlock.WriteEnd();
-}
-
-bool SensorManagerAndroid::Start(ConsumerType consumer_type) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(!device_sensors_.is_null());
-  int rate_in_microseconds = (consumer_type == CONSUMER_TYPE_LIGHT)
-                                 ? kLightSensorIntervalMicroseconds
-                                 : kDeviceSensorIntervalMicroseconds;
-  return Java_DeviceSensors_start(
-      AttachCurrentThread(), device_sensors_, reinterpret_cast<intptr_t>(this),
-      static_cast<jint>(consumer_type), rate_in_microseconds);
-}
-
-void SensorManagerAndroid::Stop(ConsumerType consumer_type) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(!device_sensors_.is_null());
-  Java_DeviceSensors_stop(AttachCurrentThread(), device_sensors_,
-                          static_cast<jint>(consumer_type));
-}
-
-int SensorManagerAndroid::GetNumberActiveDeviceMotionSensors() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(!device_sensors_.is_null());
-  return Java_DeviceSensors_getNumberActiveDeviceMotionSensors(
-      AttachCurrentThread(), device_sensors_);
-}
-
-SensorManagerAndroid::OrientationSensorType
-SensorManagerAndroid::GetOrientationSensorTypeUsed() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(!device_sensors_.is_null());
-  return static_cast<SensorManagerAndroid::OrientationSensorType>(
-      Java_DeviceSensors_getOrientationSensorTypeUsed(AttachCurrentThread(),
-                                                      device_sensors_));
-}
-
-// ----- Shared memory API methods
-
-// --- Device Light
-
-void SensorManagerAndroid::StartFetchingDeviceLightData(
-    DeviceLightHardwareBuffer* buffer) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(buffer);
-  if (is_shutdown_)
-    return;
-
-  {
-    base::AutoLock autolock(light_buffer_lock_);
-    device_light_buffer_ = buffer;
-    SetLightBufferValue(-1);
-  }
-  bool success = Start(CONSUMER_TYPE_LIGHT);
-  if (!success) {
-    base::AutoLock autolock(light_buffer_lock_);
-    SetLightBufferValue(std::numeric_limits<double>::infinity());
-  }
-}
-
-void SensorManagerAndroid::StopFetchingDeviceLightData() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  if (is_shutdown_)
-    return;
-
-  Stop(CONSUMER_TYPE_LIGHT);
-  {
-    base::AutoLock autolock(light_buffer_lock_);
-    if (device_light_buffer_) {
-      SetLightBufferValue(-1);
-      device_light_buffer_ = nullptr;
-    }
-  }
-}
-
-void SensorManagerAndroid::SetLightBufferValue(double lux) {
-  device_light_buffer_->seqlock.WriteBegin();
-  device_light_buffer_->data.value = lux;
-  device_light_buffer_->seqlock.WriteEnd();
-}
-
-// --- Device Motion
-
-void SensorManagerAndroid::StartFetchingDeviceMotionData(
-    DeviceMotionHardwareBuffer* buffer) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(buffer);
-  if (is_shutdown_)
-    return;
-
-  {
-    base::AutoLock autolock(motion_buffer_lock_);
-    device_motion_buffer_ = buffer;
-    ClearInternalMotionBuffers();
-  }
-  Start(CONSUMER_TYPE_MOTION);
-
-  // If no motion data can ever be provided, the number of active device motion
-  // sensors will be zero. In that case flag the shared memory buffer
-  // as ready to read, as it will not change anyway.
-  number_active_device_motion_sensors_ = GetNumberActiveDeviceMotionSensors();
-  {
-    base::AutoLock autolock(motion_buffer_lock_);
-    CheckMotionBufferReadyToRead();
-  }
-}
-
-void SensorManagerAndroid::StopFetchingDeviceMotionData() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  if (is_shutdown_)
-    return;
-
-  Stop(CONSUMER_TYPE_MOTION);
-  {
-    base::AutoLock autolock(motion_buffer_lock_);
-    if (device_motion_buffer_) {
-      ClearInternalMotionBuffers();
-      device_motion_buffer_ = nullptr;
-    }
-  }
-}
-
-void SensorManagerAndroid::CheckMotionBufferReadyToRead() {
-  if (received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] +
-      received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] +
-      received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] ==
-      number_active_device_motion_sensors_) {
-    device_motion_buffer_->seqlock.WriteBegin();
-    device_motion_buffer_->data.interval =
-        kDeviceSensorIntervalMicroseconds / 1000.;
-    device_motion_buffer_->seqlock.WriteEnd();
-    SetMotionBufferReadyStatus(true);
-
-    UMA_HISTOGRAM_BOOLEAN("InertialSensor.AccelerometerAndroidAvailable",
-        received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] > 0);
-    UMA_HISTOGRAM_BOOLEAN(
-        "InertialSensor.AccelerometerIncGravityAndroidAvailable",
-        received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY]
-        > 0);
-    UMA_HISTOGRAM_BOOLEAN("InertialSensor.GyroscopeAndroidAvailable",
-        received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] > 0);
-  }
-}
-
-void SensorManagerAndroid::SetMotionBufferReadyStatus(bool ready) {
-  device_motion_buffer_->seqlock.WriteBegin();
-  device_motion_buffer_->data.allAvailableSensorsAreActive = ready;
-  device_motion_buffer_->seqlock.WriteEnd();
-  motion_buffer_initialized_ = ready;
-}
-
-void SensorManagerAndroid::ClearInternalMotionBuffers() {
-  memset(received_motion_data_, 0, sizeof(received_motion_data_));
-  number_active_device_motion_sensors_ = 0;
-  SetMotionBufferReadyStatus(false);
-}
-
-// --- Device Orientation
-
-void SensorManagerAndroid::StartFetchingDeviceOrientationData(
-    DeviceOrientationHardwareBuffer* buffer) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(buffer);
-  if (is_shutdown_)
-    return;
-
-  {
-    base::AutoLock autolock(orientation_buffer_lock_);
-    device_orientation_buffer_ = buffer;
-  }
-  bool success = Start(CONSUMER_TYPE_ORIENTATION);
-
-  {
-    base::AutoLock autolock(orientation_buffer_lock_);
-    // If Start() was unsuccessful then set the buffer ready flag to true
-    // to start firing all-null events.
-    SetOrientationBufferStatus(buffer, !success /* ready */,
-        false /* absolute */);
-    orientation_buffer_initialized_ = !success;
-  }
-
-  if (!success)
-    UpdateDeviceOrientationHistogram(NOT_AVAILABLE);
-}
-
-void SensorManagerAndroid::StopFetchingDeviceOrientationData() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  if (is_shutdown_)
-    return;
-
-  Stop(CONSUMER_TYPE_ORIENTATION);
-  {
-    base::AutoLock autolock(orientation_buffer_lock_);
-    if (device_orientation_buffer_) {
-      SetOrientationBufferStatus(device_orientation_buffer_, false, false);
-      orientation_buffer_initialized_ = false;
-      device_orientation_buffer_ = nullptr;
-    }
-  }
-}
-
-void SensorManagerAndroid::StartFetchingDeviceOrientationAbsoluteData(
-    DeviceOrientationHardwareBuffer* buffer) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(buffer);
-  if (is_shutdown_)
-    return;
-
-  {
-    base::AutoLock autolock(orientation_absolute_buffer_lock_);
-    device_orientation_absolute_buffer_ = buffer;
-  }
-  bool success = Start(CONSUMER_TYPE_ORIENTATION_ABSOLUTE);
-
-  {
-    base::AutoLock autolock(orientation_absolute_buffer_lock_);
-    // If Start() was unsuccessful then set the buffer ready flag to true
-    // to start firing all-null events.
-    SetOrientationBufferStatus(buffer, !success /* ready */,
-        false /* absolute */);
-    orientation_absolute_buffer_initialized_ = !success;
-  }
-}
-
-void SensorManagerAndroid::StopFetchingDeviceOrientationAbsoluteData() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  if (is_shutdown_)
-    return;
-
-  Stop(CONSUMER_TYPE_ORIENTATION_ABSOLUTE);
-  {
-    base::AutoLock autolock(orientation_absolute_buffer_lock_);
-    if (device_orientation_absolute_buffer_) {
-      SetOrientationBufferStatus(device_orientation_absolute_buffer_, false,
-          false);
-      orientation_absolute_buffer_initialized_ = false;
-      device_orientation_absolute_buffer_ = nullptr;
-    }
-  }
-}
-
-void SensorManagerAndroid::Shutdown() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  is_shutdown_ = true;
-}
-
-}  // namespace content