Make the Geoposition helper class public

content/public/common/geoposition.cc

+// 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.
+
+#include "content/public/common/geoposition.h"
+
+namespace {
+// Sentinel values to mark invalid data. (WebKit carries companion is_valid
+// bools for this purpose; we may eventually follow that approach, but
+// sentinels worked OK in the Gears code this is based on.)
+const double kBadLatitudeLongitude = 200;
+// Lowest point on land is at approximately -400 meters.
+const int kBadAltitude = -10000;
+const int kBadAccuracy = -1;  // Accuracy must be non-negative.
+const int kBadHeading = -1;  // Heading must be non-negative.
+const int kBadSpeed = -1;
+}
+
+namespace content {
+
+Geoposition::Geoposition()
+    : latitude(kBadLatitudeLongitude),
+      longitude(kBadLatitudeLongitude),
+      altitude(kBadAltitude),
+      accuracy(kBadAccuracy),
+      altitude_accuracy(kBadAccuracy),
+      heading(kBadHeading),
+      speed(kBadSpeed),
+      error_code(ERROR_CODE_NONE) {
+}
+
+bool Geoposition::Validate() const {
+  return latitude >= -90. && latitude <= 90. &&
+         longitude >= -180. && longitude <= 180. &&
+         accuracy >= 0. &&
+         !timestamp.is_null();
+}
+
+}  // namespace content