Revert 76228 - Move core pieces of geolocation from chrome to content.This is...

content/browser/geolocation/libgps_2_38_wrapper_linux.cc

-// Copyright (c) 2010 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 variant of libgps wrapper for use with the 2.38 release of the API.
-
-#include "content/browser/geolocation/libgps_wrapper_linux.h"
-
-// This lot needed for DataWaiting()
-#include <sys/socket.h>
-#include <sys/time.h>
-
-#include "base/logging.h"
-#include "chrome/common/geoposition.h"
-#include "third_party/gpsd/release-2.38/gps.h"
-
-class LibGpsV238 : public LibGps {
- public:
-  explicit LibGpsV238(LibGpsLibraryWrapper* dl_wrapper) : LibGps(dl_wrapper) {}
-
-  // LibGps
-  virtual bool StartStreaming() {
-    return library().query("w+x\n") == 0;
-  }
-  virtual bool DataWaiting() {
-    // Unfortunately the 2.38 API has no public method for non-blocking test
-    // for new data arrived, so we must contrive our own by doing a select() on
-    // the underlying struct's socket fd.
-    fd_set fds;
-    struct timeval timeout = {0};
-    int fd = library().data().gps_fd;
-
-    FD_ZERO(&fds);
-    FD_SET(fd, &fds);
-
-    int ret = select(fd + 1, &fds, NULL, NULL, &timeout);
-    if (ret == -1) {
-      LOG(WARNING) << "libgps socket select failed: " << ret;
-      return false;
-    }
-    DCHECK_EQ(!!ret, !!FD_ISSET(fd, &fds));
-    return ret;
-  }
-  virtual bool GetPositionIfFixed(Geoposition* position) {
-    // This function is duplicated between the library versions, however it
-    // cannot be shared as each one must be strictly compiled against the
-    // corresponding version of gps.h.
-    DCHECK(position);
-    const gps_data_t& gps_data = library().data();
-    if (gps_data.status == STATUS_NO_FIX)
-      return false;
-    position->latitude = gps_data.fix.latitude;
-    position->longitude = gps_data.fix.longitude;
-    position->accuracy = gps_data.fix.eph;
-    position->altitude = gps_data.fix.altitude;
-    position->altitude_accuracy = gps_data.fix.epv;
-    position->heading = gps_data.fix.track;
-    position->speed = gps_data.fix.speed;
-    return true;
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(LibGpsV238);
-};
-
-LibGps* LibGps::NewV238(LibGpsLibraryWrapper* dl_wrapper) {
-  return new LibGpsV238(dl_wrapper);
-}