Add more gears geolocaiton files into chromium: locaiton provider, network lo...

chrome/browser/geolocation/backoff_manager.h

+// Copyright 2008, Google Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//  1. Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//  2. Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//  3. Neither the name of Google Inc. nor the names of its contributors may be
+//     used to endorse or promote products derived from this software without
+//     specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// The BackoffManager class is used to implement exponential back-off for
+// network requests in case of sever errors. Users report to the BackoffManager
+// class when they make a request to or receive a response from a given url. The
+// BackoffManager class provides the earliest time at which subsequent requests
+// should be made.
+
+#ifndef GEARS_GEOLOCATION_BACKOFF_MANAGER_H__
+#define GEARS_GEOLOCATION_BACKOFF_MANAGER_H__
+
+// TODO(joth): port to chromium
+#if 0
+
+#include "gears/base/common/common.h"
+#include "gears/base/common/mutex.h"
+#include "gears/base/common/stopwatch.h"  // For GetCurrentTimeMillis
+#include <map>
+
+class BackoffManager {
+ public:
+  static void ReportRequest(const std::string16 &url);
+  static int64 ReportResponse(const std::string16 &url, bool server_error);
+
+ private:
+  // A map from server URL to a pair of integers representing the last request
+  // time and the current minimum interval between requests, both in
+  // milliseconds.
+  typedef std::map<std::string16, std::pair<int64, int64> > ServerMap;
+  static ServerMap servers_;
+
+  // The mutex used to protect the map.
+  static Mutex servers_mutex_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(BackoffManager);
+};
+
+#endif  // if 0
+
+#endif  // GEARS_GEOLOCATION_BACKOFF_MANAGER_H__