chromeos: Add a stub implementation for SensorsSource.

chrome/browser/chromeos/dbus/sensors_source.cc

-// Copyright (c) 2011 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 "chrome/browser/chromeos/dbus/sensors_source.h"
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "content/browser/browser_thread.h"
-#include "content/browser/sensors/sensors_provider.h"
-#include "dbus/bus.h"
-#include "dbus/message.h"
-#include "dbus/object_proxy.h"
-
-// TODO(cwolfe): Fix the DEPs so that these can be pulled in from
-//               "chromeos/dbus/service_constants.h".
-namespace chromeos {
-// Sensors service identifiers.
-const char kSensorsServiceName[] = "org.chromium.Sensors";
-const char kSensorsServicePath[] = "/org/chromium/Sensors";
-const char kSensorsServiceInterface[] = "org.chromium.Sensors";
-// Sensors signal names.
-const char kScreenOrientationChanged[] = "ScreenOrientationChanged";
-
-SensorsSource::SensorsSource()
-  : sensors_proxy_(NULL),
-    weak_ptr_factory_(this) {
-}
-
-void SensorsSource::Init(dbus::Bus* bus) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-
-  sensors_proxy_ = bus->GetObjectProxy(chromeos::kSensorsServiceName,
-                                       chromeos::kSensorsServicePath);
-  sensors_proxy_->ConnectToSignal(chromeos::kSensorsServiceInterface,
-                                  chromeos::kScreenOrientationChanged,
-      base::Bind(&SensorsSource::OrientationChangedReceived,
-                 weak_ptr_factory_.GetWeakPtr()),
-      base::Bind(&SensorsSource::OrientationChangedConnected,
-                 weak_ptr_factory_.GetWeakPtr()));
-}
-
-SensorsSource::~SensorsSource() {
-}
-
-void SensorsSource::OrientationChangedReceived(dbus::Signal* signal) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-
-  sensors::ScreenOrientation orientation;
-
-  dbus::MessageReader reader(signal);
-  int32 upward = 0;
-  if (!reader.PopInt32(&upward)) {
-    LOG(WARNING) << "Orientation changed signal had incorrect parameters: "
-                 << signal->ToString();
-    return;
-  }
-  VLOG(1) << "Orientation changed to upward " << upward;
-  orientation.upward = static_cast<sensors::ScreenOrientation::Side>(upward);
-
-  sensors::Provider::GetInstance()->ScreenOrientationChanged(orientation);
-}
-
-void SensorsSource::OrientationChangedConnected(
-    const std::string& interface_name,
-    const std::string& signal_name,
-    bool success) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  if (!success)
-    LOG(WARNING) << "Failed to connect to orientation changed signal.";
-}
-
-}  // namespace chromeos