Implement Android shared memory data fetcher for Device Motion.

content/browser/device_orientation/data_fetcher_orientation_android.h

+// Copyright (c) 2013 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.
+
+#ifndef CHROME_BROWSER_DEVICE_ORIENTATION_DATA_FETCHER_ORIENTATION_ANDROID_H_
+#define CHROME_BROWSER_DEVICE_ORIENTATION_DATA_FETCHER_ORIENTATION_ANDROID_H_
+
+#include "content/browser/device_orientation/data_fetcher.h"
+#include "content/browser/device_orientation/device_data.h"
+
+namespace content {
+
+class DataFetcherOrientationAndroid : public DataFetcher {
+ public:
+  // Factory function. We'll listen for events for the lifetime of this object.
+  // Returns NULL on error.
+  static DataFetcher* Create();

[bulach, 2013/07/12 14:00:41]

return a scoped_ptr<DataFecther>

[timvolodine, 2013/07/12 15:22:18]

provider_impl.cc uses a raw pointer (which is later scoped). I would probably
need to change other fetcher as well, which I think goes beyond this CL..

+
+  virtual ~DataFetcherOrientationAndroid();
+
+  // Implementation of DataFetcher.
+  virtual const DeviceData* GetDeviceData(DeviceData::Type type) OVERRIDE;
+
+ protected:
+  DataFetcherOrientationAndroid();
+
+  DISALLOW_COPY_AND_ASSIGN(DataFetcherOrientationAndroid);
+};
+
+}  // namespace content
+
+#endif  // CHROME_BROWSER_DEVICE_ORIENTATION_DATA_FETCHER_ORIENTATION_ANDROID_H_