Make the Geoposition helper class public

content/public/common/geoposition.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.

[jam, 2012/05/02 18:04:23]

for this and the cc file, please "svn mv" them and not just copy them yourself
and "svn add" them, so that we maintain the svn history.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file declares the Geoposition structure, used to represent a position
+// fix. It was originally derived from:
+// http://gears.googlecode.com/svn/trunk/gears/geolocation/geolocation.h
+
+#ifndef CONTENT_PUBLIC_COMMON_GEOPOSITION_H_
+#define CONTENT_PUBLIC_COMMON_GEOPOSITION_H_
+#pragma once
+
+#include <string>
+
+#include "base/time.h"
+#include "content/common/content_export.h"
+
+namespace content {
+
+struct CONTENT_EXPORT Geoposition {
+ public:
+  // These values follow the W3C geolocation specification and can be returned
+  // to JavaScript without the need for a conversion.
+  enum ErrorCode {
+    ERROR_CODE_NONE = 0,  // Chrome addition.
+    ERROR_CODE_PERMISSION_DENIED = 1,
+    ERROR_CODE_POSITION_UNAVAILABLE = 2,
+    ERROR_CODE_TIMEOUT = 3,
+  };
+
+  // All fields are initialized to sentinel values marking them as invalid. The
+  // error code is set to ERROR_CODE_NONE.
+  Geoposition();
+
+  // A valid fix has a valid latitude, longitude, accuracy and timestamp.
+  bool Validate() const;
+
+  // These properties correspond to those of the JavaScript Position object
+  // although their types may differ.
+  // Latitude in decimal degrees north (WGS84 coordinate frame).
+  double latitude;
+  // Longitude in decimal degrees west (WGS84 coordinate frame).
+  double longitude;
+  // Altitude in meters (above WGS84 datum).
+  double altitude;
+  // Accuracy of horizontal position in meters.
+  double accuracy;
+  // Accuracy of altitude in meters.
+  double altitude_accuracy;
+  // Heading in decimal degrees clockwise from true north.
+  double heading;
+  // Horizontal component of device velocity in meters per second.
+  double speed;
+  // Time of position measurement in milisecons since Epoch in UTC time. This is
+  // taken from the host computer's system clock (i.e. from Time::Now(), not the
+  // source device's clock).
+  base::Time timestamp;
+
+  // Error code, see enum above.
+  ErrorCode error_code;
+  // Human-readable error message.
+  std::string error_message;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GEOPOSITION_H_