Reland Device Orientation API on Chrome OS

content/browser/device_sensors/data_fetcher_shared_memory_chromeos.cc

Index: content/browser/device_sensors/data_fetcher_shared_memory_chromeos.cc
diff --git a/content/browser/device_sensors/data_fetcher_shared_memory_chromeos.cc b/content/browser/device_sensors/data_fetcher_shared_memory_chromeos.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6dc0336e7a509eda48d0432ca73581006aa73379
--- /dev/null
+++ b/content/browser/device_sensors/data_fetcher_shared_memory_chromeos.cc
@@ -0,0 +1,53 @@
+// Copyright 2015 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/data_fetcher_shared_memory.h"
+
+#include "content/browser/device_sensors/sensor_manager_chromeos.h"
+
+namespace content {
+
+DataFetcherSharedMemory::DataFetcherSharedMemory() {
+}
+
+DataFetcherSharedMemory::~DataFetcherSharedMemory() {
+}
+
+bool DataFetcherSharedMemory::Start(ConsumerType consumer_type, void* buffer) {
+  DCHECK(buffer);
+  if (!sensor_manager_)
+    sensor_manager_.reset(new SensorManagerChromeOS);
+
+  switch (consumer_type) {
+    case CONSUMER_TYPE_MOTION:
+      // TODO(jonross): Implement Device Motion API. (crbug.com/427662)
+      NOTIMPLEMENTED();
+      return false;
+    case CONSUMER_TYPE_ORIENTATION:
+      return sensor_manager_->StartFetchingDeviceOrientationData(
+          static_cast<DeviceOrientationHardwareBuffer*>(buffer));
+    case CONSUMER_TYPE_LIGHT:
+      NOTIMPLEMENTED();
+      return false;
+  }
+  NOTREACHED();
+  return false;
+}
+
+bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) {
+  switch (consumer_type) {
+    case CONSUMER_TYPE_MOTION:
+      NOTIMPLEMENTED();
+      return false;
+    case CONSUMER_TYPE_ORIENTATION:
+      return sensor_manager_->StopFetchingDeviceOrientationData();
+    case CONSUMER_TYPE_LIGHT:
+      NOTIMPLEMENTED();
+      return false;
+  }
+  NOTREACHED();
+  return false;
+}
+
+}  // namespace content