Linux: use generated library loader for libgps.

content/browser/geolocation/libgps_wrapper_linux.h

-// Copyright (c) 2012 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.
-
-// Defines a wrapper around the C libgps API (gps.h). Similar to the libgpsmm.h
-// API provided by that package.
-
-#ifndef CONTENT_BROWSER_GEOLOCATION_LIBGPS_WRAPPER_LINUX_H_
-#define CONTENT_BROWSER_GEOLOCATION_LIBGPS_WRAPPER_LINUX_H_
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "content/common/content_export.h"
-
-struct gps_data_t;
-
-namespace content {
-struct Geoposition;
-
-class CONTENT_EXPORT LibGps {
- public:
-  virtual ~LibGps();
-  // Attempts to dynamically load the libgps.so library and returns NULL on
-  // failure.
-  static LibGps* New();
-
-  bool Start();
-  void Stop();
-  bool Read(Geoposition* position);
-
- protected:
-  typedef int (*gps_open_fn)(const char*, const char*, struct gps_data_t*);
-  typedef int (*gps_close_fn)(struct gps_data_t*);
-  typedef int (*gps_read_fn)(struct gps_data_t*);
-
-  explicit LibGps(void* dl_handle,
-                  gps_open_fn gps_open,
-                  gps_close_fn gps_close,
-                  gps_read_fn gps_read);
-
-  // Returns false if there is not fix available.
-  virtual bool GetPositionIfFixed(Geoposition* position);
-
- private:
-  void* dl_handle_;
-  gps_open_fn gps_open_;
-  gps_close_fn gps_close_;
-  gps_read_fn gps_read_;
-
-  scoped_ptr<gps_data_t> gps_data_;
-  bool is_open_;
-
-  DISALLOW_COPY_AND_ASSIGN(LibGps);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_GEOLOCATION_LIBGPS_WRAPPER_LINUX_H_